69106961891 has 24 divisors (see below), whose sum is σ = 78893015040. Its totient is φ = 60029512400.

The previous prime is 69106961887. The next prime is 69106961933. The reversal of 69106961891 is 19816960196.

It is not a de Polignac number, because 69106961891 - 2² = 69106961887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69106961801) 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, 5993630 + ... + 6005148.

It is an arithmetic number, because the mean of its divisors is an integer number (3287208960).

Almost surely, 2^69106961891 is an apocalyptic number.

69106961891 is a deficient number, since it is larger than the sum of its proper divisors (9786053149).

69106961891 is a wasteful number, since it uses less digits than its factorization.

69106961891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12607 (or 12584 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 56.

The spelling of 69106961891 in words is "sixty-nine billion, one hundred six million, nine hundred sixty-one thousand, eight hundred ninety-one".