64853293799691 has 16 divisors (see below), whose sum is σ = 98422342895520. Its totient is φ = 42181004096640.

The previous prime is 64853293799681. The next prime is 64853293799813. The reversal of 64853293799691 is 19699739235846.

64853293799691 is a `hidden beast` number, since 6 + 4 + 8 + 53 + 29 + 379 + 96 + 91 = 666.

It is not a de Polignac number, because 64853293799691 - 2²² = 64853289605387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64853293799691.

It is not an unprimeable number, because it can be changed into a prime (64853293799681) 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, 29292362850 + ... + 29292365063.

It is an arithmetic number, because the mean of its divisors is an integer number (6151396430970).

Almost surely, 2^{64853293799691} is an apocalyptic number.

64853293799691 is a deficient number, since it is larger than the sum of its proper divisors (33569049095829).

64853293799691 is a wasteful number, since it uses less digits than its factorization.

64853293799691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58584727963 (or 58584727957 counting only the distinct ones).

The product of its digits is 4761711360, while the sum is 81.

The spelling of 64853293799691 in words is "sixty-four trillion, eight hundred fifty-three billion, two hundred ninety-three million, seven hundred ninety-nine thousand, six hundred ninety-one".