42969633858 has 18 divisors (see below), whose sum is σ = 93102778899. Its totient is φ = 14322918132.

The previous prime is 42969633829. The next prime is 42969633907. The reversal of 42969633858 is 85833696924.

42969633858 is a `hidden beast` number, since 4 + 296 + 9 + 6 + 338 + 5 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21484816929 + 21484816929 = 146577^2 + 146577^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=146577.

It is a junction number, because it is equal to n+sod(n) for n = 42969633795 and 42969633804.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 855033 + ... + 903891.

Almost surely, 2^42969633858 is an apocalyptic number.

42969633858 is an abundant number, since it is smaller than the sum of its proper divisors (50133145041).

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

42969633858 is an frugal number, since it uses more digits than its factorization.

42969633858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97726 (or 48864 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The spelling of 42969633858 in words is "forty-two billion, nine hundred sixty-nine million, six hundred thirty-three thousand, eight hundred fifty-eight".