121979036425744 has 45 divisors (see below), whose sum is σ = 236624303329869. Its totient is φ = 60914791721280.

The previous prime is 121979036425723. The next prime is 121979036425783. The reversal of 121979036425744 is 447524630979121.

The square root of 121979036425744 is 11044412.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 120561717603600 + 1417318822144 = 10980060^2 + 1190512^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 60655909699 + ... + 60655911709.

Almost surely, 2^{121979036425744} is an apocalyptic number.

121979036425744 is the 11044412-nd square number.

It is an amenable number.

121979036425744 is a deficient number, since it is larger than the sum of its proper divisors (114645266904125).

121979036425744 is an frugal number, since it uses more digits than its factorization.

121979036425744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776 (or 3386 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 121979036425744 in words is "one hundred twenty-one trillion, nine hundred seventy-nine billion, thirty-six million, four hundred twenty-five thousand, seven hundred forty-four".