652379921856 has 448 divisors, whose sum is σ = 2089221120000. Its totient is φ = 199614385152.

The previous prime is 652379921839. The next prime is 652379921873. The reversal of 652379921856 is 658129973256.

652379921856 is a `hidden beast` number, since 6 + 523 + 7 + 9 + 9 + 21 + 85 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (652379921839) and next prime (652379921873).

It is a junction number, because it is equal to n+sod(n) for n = 652379921793 and 652379921802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 907343065 + ... + 907343783.

It is an arithmetic number, because the mean of its divisors is an integer number (4663440000).

Almost surely, 2^652379921856 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 652379921856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044610560000).

652379921856 is an abundant number, since it is smaller than the sum of its proper divisors (1436841198144).

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

652379921856 is a wasteful number, since it uses less digits than its factorization.

652379921856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 976 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 63.

The spelling of 652379921856 in words is "six hundred fifty-two billion, three hundred seventy-nine million, nine hundred twenty-one thousand, eight hundred fifty-six".