2651473440 has 480 divisors, whose sum is σ = 11670873984. Its totient is φ = 550748160.

The previous prime is 2651473423. The next prime is 2651473441. The reversal of 2651473440 is 443741562.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×2651473440² = 14060622806050867200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2651473395 and 2651473404.

It is not an unprimeable number, because it can be changed into a prime (2651473441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 996592 + ... + 999248.

Almost surely, 2^2651473440 is an apocalyptic number.

2651473440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2651473440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5835436992).

2651473440 is an abundant number, since it is smaller than the sum of its proper divisors (9019400544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2651473440 is a wasteful number, since it uses less digits than its factorization.

2651473440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 2651473440 is about 51492.4600305715. The cubic root of 2651473440 is about 1384.0839324509.

The spelling of 2651473440 in words is "two billion, six hundred fifty-one million, four hundred seventy-three thousand, four hundred forty".