91770273802 has 16 divisors (see below), whose sum is σ = 140940122400. Its totient is φ = 44791497072.

The previous prime is 91770273797. The next prime is 91770273811. The reversal of 91770273802 is 20837207719.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169552 + ... + 460747.

It is an arithmetic number, because the mean of its divisors is an integer number (8808757650).

Almost surely, 2^91770273802 is an apocalyptic number.

91770273802 is a deficient number, since it is larger than the sum of its proper divisors (49169848598).

91770273802 is a wasteful number, since it uses less digits than its factorization.

91770273802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632037.

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 91770273802 in words is "ninety-one billion, seven hundred seventy million, two hundred seventy-three thousand, eight hundred two".