121827153568 has 24 divisors (see below), whose sum is σ = 239855484960. Its totient is φ = 60911474880.

The previous prime is 121827153529. The next prime is 121827153593. The reversal of 121827153568 is 865351728121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336983 + ... + 1425193.

It is an arithmetic number, because the mean of its divisors is an integer number (9993978540).

Almost surely, 2^121827153568 is an apocalyptic number.

It is an amenable number.

121827153568 is a deficient number, since it is larger than the sum of its proper divisors (118028331392).

121827153568 is an equidigital number, since it uses as much as digits as its factorization.

121827153568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131380 (or 131372 counting only the distinct ones).

The product of its digits is 806400, while the sum is 49.

The spelling of 121827153568 in words is "one hundred twenty-one billion, eight hundred twenty-seven million, one hundred fifty-three thousand, five hundred sixty-eight".