2451705372 has 72 divisors (see below), whose sum is σ = 6496329840. Its totient is φ = 778740480.

The previous prime is 2451705317. The next prime is 2451705407. The reversal of 2451705372 is 2735071542.

2451705372 is a `hidden beast` number, since 2 + 4 + 51 + 70 + 537 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 44154 + ... + 82782.

Almost surely, 2^2451705372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2451705372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3248164920).

2451705372 is an abundant number, since it is smaller than the sum of its proper divisors (4044624468).

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

2451705372 is a wasteful number, since it uses less digits than its factorization.

2451705372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38723 (or 38718 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 2451705372 is about 49514.6985449775. The cubic root of 2451705372 is about 1348.4124680306.

The spelling of 2451705372 in words is "two billion, four hundred fifty-one million, seven hundred five thousand, three hundred seventy-two".