121752057774 has 16 divisors (see below), whose sum is σ = 243941293008. Its totient is φ = 40511156352.

The previous prime is 121752057769. The next prime is 121752057781. The reversal of 121752057774 is 477750257121.

It is a congruent 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, 18212107 + ... + 18218790.

It is an arithmetic number, because the mean of its divisors is an integer number (15246330813).

Almost surely, 2^121752057774 is an apocalyptic number.

121752057774 is an abundant number, since it is smaller than the sum of its proper divisors (122189235234).

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

121752057774 is a wasteful number, since it uses less digits than its factorization.

121752057774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36431459.

The product of its (nonzero) digits is 960400, while the sum is 48.

The spelling of 121752057774 in words is "one hundred twenty-one billion, seven hundred fifty-two million, fifty-seven thousand, seven hundred seventy-four".