42989885715 has 32 divisors (see below), whose sum is σ = 78621834240. Its totient is φ = 19649579904.

The previous prime is 42989885671. The next prime is 42989885749. The reversal of 42989885715 is 51758898924.

It is not a de Polignac number, because 42989885715 - 2⁸ = 42989885459 is a prime.

It is a super-2 number, since 2×42989885715² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775297 + ... + 828893.

It is an arithmetic number, because the mean of its divisors is an integer number (2456932320).

Almost surely, 2^42989885715 is an apocalyptic number.

42989885715 is a deficient number, since it is larger than the sum of its proper divisors (35631948525).

42989885715 is a wasteful number, since it uses less digits than its factorization.

42989885715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61251.

The product of its digits is 58060800, while the sum is 66.

The spelling of 42989885715 in words is "forty-two billion, nine hundred eighty-nine million, eight hundred eighty-five thousand, seven hundred fifteen".