42697008864 has 36 divisors (see below), whose sum is σ = 121419619776. Its totient is φ = 14232336192.

The previous prime is 42697008841. The next prime is 42697008911. The reversal of 42697008864 is 46880079624.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42697008864.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74126464 + ... + 74127039.

It is an arithmetic number, because the mean of its divisors is an integer number (3372767216).

Almost surely, 2^42697008864 is an apocalyptic number.

It is an amenable number.

42697008864 is an abundant number, since it is smaller than the sum of its proper divisors (78722610912).

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

42697008864 is a wasteful number, since it uses less digits than its factorization.

42697008864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148253519 (or 148253508 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 42697008864 in words is "forty-two billion, six hundred ninety-seven million, eight thousand, eight hundred sixty-four".