64893696692 has 48 divisors (see below), whose sum is σ = 131285121408. Its totient is φ = 27738808320.

The previous prime is 64893696683. The next prime is 64893696701. The reversal of 64893696692 is 29669639846.

It is an interprime number because it is at equal distance from previous prime (64893696683) and next prime (64893696701).

It is a super-2 number, since 2×64893696692² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (68).

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 15 ways as a sum of consecutive naturals, for example, 874673 + ... + 945959.

It is an arithmetic number, because the mean of its divisors is an integer number (2735106696).

Almost surely, 2^64893696692 is an apocalyptic number.

It is an amenable number.

64893696692 is an abundant number, since it is smaller than the sum of its proper divisors (66391424716).

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

64893696692 is a wasteful number, since it uses less digits than its factorization.

64893696692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72536 (or 72534 counting only the distinct ones).

The product of its digits is 181398528, while the sum is 68.

The spelling of 64893696692 in words is "sixty-four billion, eight hundred ninety-three million, six hundred ninety-six thousand, six hundred ninety-two".