651793872 has 80 divisors (see below), whose sum is σ = 1860416640. Its totient is φ = 195588096.

The previous prime is 651793861. The next prime is 651793897. The reversal of 651793872 is 278397156.

651793872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1404 + ... + 36132.

It is an arithmetic number, because the mean of its divisors is an integer number (23255208).

Almost surely, 2^651793872 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 651793872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930208320).

651793872 is an abundant number, since it is smaller than the sum of its proper divisors (1208622768).

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

651793872 is a wasteful number, since it uses less digits than its factorization.

651793872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34780 (or 34774 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 651793872 is about 25530.2540527900. The cubic root of 651793872 is about 867.0352564987.

The spelling of 651793872 in words is "six hundred fifty-one million, seven hundred ninety-three thousand, eight hundred seventy-two".