64857679069374 has 24 divisors (see below), whose sum is σ = 140597744551992. Its totient is φ = 21608030474160.

The previous prime is 64857679069367. The next prime is 64857679069451. The reversal of 64857679069374 is 47396097675846.

64857679069374 is a `hidden beast` number, since 6 + 4 + 8 + 576 + 7 + 9 + 0 + 6 + 9 + 37 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 64857679069293 and 64857679069302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 932954469 + ... + 933023984.

It is an arithmetic number, because the mean of its divisors is an integer number (5858239356333).

Almost surely, 2^{64857679069374} is an apocalyptic number.

64857679069374 is an abundant number, since it is smaller than the sum of its proper divisors (75740065482618).

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

64857679069374 is a wasteful number, since it uses less digits than its factorization.

64857679069374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865980392 (or 1865980389 counting only the distinct ones).

The product of its (nonzero) digits is 11522165760, while the sum is 81.

The spelling of 64857679069374 in words is "sixty-four trillion, eight hundred fifty-seven billion, six hundred seventy-nine million, sixty-nine thousand, three hundred seventy-four".