1121977154636 has 24 divisors (see below), whose sum is σ = 2116188480000. Its totient is φ = 517420979712.

The previous prime is 1121977154621. The next prime is 1121977154657. The reversal of 1121977154636 is 6364517791211.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 8572556 + ... + 8702451.

It is an arithmetic number, because the mean of its divisors is an integer number (88174520000).

Almost surely, 2^{1121977154636} is an apocalyptic number.

It is an amenable number.

1121977154636 is a deficient number, since it is larger than the sum of its proper divisors (994211325364).

1121977154636 is a wasteful number, since it uses less digits than its factorization.

1121977154636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17276273 (or 17276271 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The spelling of 1121977154636 in words is "one trillion, one hundred twenty-one billion, nine hundred seventy-seven million, one hundred fifty-four thousand, six hundred thirty-six".