64500652038 has 32 divisors (see below), whose sum is σ = 129346108416. Its totient is φ = 21442791968.

The previous prime is 64500652037. The next prime is 64500652039. The reversal of 64500652038 is 83025600546.

It is an interprime number because it is at equal distance from previous prime (64500652037) and next prime (64500652039).

It is a super-2 number, since 2×64500652038² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64500651987 and 64500652005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64500652037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10663531 + ... + 10669577.

It is an arithmetic number, because the mean of its divisors is an integer number (4042065888).

Almost surely, 2^64500652038 is an apocalyptic number.

64500652038 is an abundant number, since it is smaller than the sum of its proper divisors (64845456378).

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

64500652038 is a wasteful number, since it uses less digits than its factorization.

64500652038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10508.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 64500652038 in words is "sixty-four billion, five hundred million, six hundred fifty-two thousand, thirty-eight".