71092784136 has 64 divisors (see below), whose sum is σ = 193913812800. Its totient is φ = 21540556800.

The previous prime is 71092784057. The next prime is 71092784159. The reversal of 71092784136 is 63148729017.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3347760 + ... + 3368928.

It is an arithmetic number, because the mean of its divisors is an integer number (3029903325).

Almost surely, 2^71092784136 is an apocalyptic number.

It is an amenable number.

71092784136 is an abundant number, since it is smaller than the sum of its proper divisors (122821028664).

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

71092784136 is a wasteful number, since it uses less digits than its factorization.

71092784136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33910 (or 33906 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 71092784136 in words is "seventy-one billion, ninety-two million, seven hundred eighty-four thousand, one hundred thirty-six".