121536794562 has 32 divisors (see below), whose sum is σ = 261310924800. Its totient is φ = 37563442128.

The previous prime is 121536794503. The next prime is 121536794677. The reversal of 121536794562 is 265497635121.

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, 11336262 + ... + 11346977.

It is an arithmetic number, because the mean of its divisors is an integer number (8165966400).

Almost surely, 2^121536794562 is an apocalyptic number.

121536794562 is an abundant number, since it is smaller than the sum of its proper divisors (139774130238).

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

121536794562 is a wasteful number, since it uses less digits than its factorization.

121536794562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22683310.

The product of its digits is 2721600, while the sum is 51.

The spelling of 121536794562 in words is "one hundred twenty-one billion, five hundred thirty-six million, seven hundred ninety-four thousand, five hundred sixty-two".