64790509552860 has 192 divisors, whose sum is σ = 229312606666752. Its totient is φ = 13300623719424.

The previous prime is 64790509552793. The next prime is 64790509552861. The reversal of 64790509552860 is 6825590509746.

It is a junction number, because it is equal to n+sod(n) for n = 64790509552791 and 64790509552800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64790509552861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 160154652 + ... + 160558691.

It is an arithmetic number, because the mean of its divisors is an integer number (1194336493056).

Almost surely, 2^{64790509552860} is an apocalyptic number.

64790509552860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64790509552860 is an abundant number, since it is smaller than the sum of its proper divisors (164522097113892).

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

64790509552860 is a wasteful number, since it uses less digits than its factorization.

64790509552860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320713412 (or 320713410 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 66.

The spelling of 64790509552860 in words is "sixty-four trillion, seven hundred ninety billion, five hundred nine million, five hundred fifty-two thousand, eight hundred sixty".