2651433720 has 256 divisors, whose sum is σ = 8941363200. Its totient is φ = 624568320.

The previous prime is 2651433671. The next prime is 2651433761. The reversal of 2651433720 is 273341562.

2651433720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5270989 + ... + 5271491.

It is an arithmetic number, because the mean of its divisors is an integer number (34927200).

Almost surely, 2^2651433720 is an apocalyptic number.

2651433720 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 2651433720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4470681600).

2651433720 is an abundant number, since it is smaller than the sum of its proper divisors (6289929480).

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

2651433720 is a wasteful number, since it uses less digits than its factorization.

2651433720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 2651433720 is about 51492.0743415916. The cubic root of 2651433720 is about 1384.0770210625.

The spelling of 2651433720 in words is "two billion, six hundred fifty-one million, four hundred thirty-three thousand, seven hundred twenty".