64818765292 has 12 divisors (see below), whose sum is σ = 113438049760. Its totient is φ = 32407893936.

The previous prime is 64818765289. The next prime is 64818765293. The reversal of 64818765292 is 29256781846.

It is not an unprimeable number, because it can be changed into a prime (64818765293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271167 + ... + 450742.

Almost surely, 2^64818765292 is an apocalyptic number.

It is an amenable number.

64818765292 is a deficient number, since it is larger than the sum of its proper divisors (48619284468).

64818765292 is a wasteful number, since it uses less digits than its factorization.

64818765292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744360 (or 744358 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The spelling of 64818765292 in words is "sixty-four billion, eight hundred eighteen million, seven hundred sixty-five thousand, two hundred ninety-two".