78506633111236 has 24 divisors (see below), whose sum is σ = 149888462933664. Its totient is φ = 35681937194880.

The previous prime is 78506633111227. The next prime is 78506633111287. The reversal of 78506633111236 is 63211133660587.

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, 71852565 + ... + 72936988.

It is an arithmetic number, because the mean of its divisors is an integer number (6245352622236).

Almost surely, 2^{78506633111236} is an apocalyptic number.

It is an amenable number.

78506633111236 is a deficient number, since it is larger than the sum of its proper divisors (71381829822428).

78506633111236 is a wasteful number, since it uses less digits than its factorization.

78506633111236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144801891 (or 144801889 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 78506633111236 in words is "seventy-eight trillion, five hundred six billion, six hundred thirty-three million, one hundred eleven thousand, two hundred thirty-six".