64857075846 has 32 divisors (see below), whose sum is σ = 130401369600. Its totient is φ = 21504548736.

The previous prime is 64857075841. The next prime is 64857075851.

64857075846 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (64857075841) and next prime (64857075851).

It is a self number, because there is not a number n which added to its sum of digits gives 64857075846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64857075841) 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, 8601390 + ... + 8608926.

It is an arithmetic number, because the mean of its divisors is an integer number (4075042800).

Almost surely, 2^64857075846 is an apocalyptic number.

64857075846 is an abundant number, since it is smaller than the sum of its proper divisors (65544293754).

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

64857075846 is a wasteful number, since it uses less digits than its factorization.

64857075846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14948.

The product of its (nonzero) digits is 45158400, while the sum is 60.

The spelling of 64857075846 in words is "sixty-four billion, eight hundred fifty-seven million, seventy-five thousand, eight hundred forty-six".