42168464065917 has 24 divisors (see below), whose sum is σ = 69616825724160. Its totient is φ = 24094398379680.

The previous prime is 42168464065901. The next prime is 42168464065957. The reversal of 42168464065917 is 71956046486124.

42168464065917 is a `hidden beast` number, since 4 + 2 + 168 + 4 + 6 + 406 + 59 + 17 = 666.

It is not a de Polignac number, because 42168464065917 - 2⁴ = 42168464065901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42168464065957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25107942 + ... + 26734727.

It is an arithmetic number, because the mean of its divisors is an integer number (2900701071840).

Almost surely, 2^{42168464065917} is an apocalyptic number.

It is an amenable number.

42168464065917 is a deficient number, since it is larger than the sum of its proper divisors (27448361658243).

42168464065917 is a wasteful number, since it uses less digits than its factorization.

42168464065917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51855593 (or 51855590 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 42168464065917 in words is "forty-two trillion, one hundred sixty-eight billion, four hundred sixty-four million, sixty-five thousand, nine hundred seventeen".