69973868691 has 48 divisors (see below), whose sum is σ = 112239825984. Its totient is φ = 41782659072.

The previous prime is 69973868687. The next prime is 69973868711. The reversal of 69973868691 is 19686837996.

It is not a de Polignac number, because 69973868691 - 2² = 69973868687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69973868621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 642775 + ... + 743711.

It is an arithmetic number, because the mean of its divisors is an integer number (2338329708).

Almost surely, 2^69973868691 is an apocalyptic number.

69973868691 is a deficient number, since it is larger than the sum of its proper divisors (42265957293).

69973868691 is a wasteful number, since it uses less digits than its factorization.

69973868691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101180 (or 101177 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 72.

The spelling of 69973868691 in words is "sixty-nine billion, nine hundred seventy-three million, eight hundred sixty-eight thousand, six hundred ninety-one".