64857714341982 has 16 divisors (see below), whose sum is σ = 129890957013120. Its totient is φ = 21589983392472.

The previous prime is 64857714341971. The next prime is 64857714342049. The reversal of 64857714341982 is 28914341775846.

It is a super-2 number, since 2×64857714341982² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7313675578 + ... + 7313684445.

It is an arithmetic number, because the mean of its divisors is an integer number (8118184813320).

Almost surely, 2^{64857714341982} is an apocalyptic number.

64857714341982 is an abundant number, since it is smaller than the sum of its proper divisors (65033242671138).

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

64857714341982 is a wasteful number, since it uses less digits than its factorization.

64857714341982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14627360767.

The product of its digits is 325140480, while the sum is 69.

The spelling of 64857714341982 in words is "sixty-four trillion, eight hundred fifty-seven billion, seven hundred fourteen million, three hundred forty-one thousand, nine hundred eighty-two".