972212605775 has 12 divisors (see below), whose sum is σ = 1205666737152. Its totient is φ = 777690661440.

The previous prime is 972212605759. The next prime is 972212605807. The reversal of 972212605775 is 577506212279.

972212605775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 972212605775 - 2⁴ = 972212605759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1735247 + ... + 2226096.

It is an arithmetic number, because the mean of its divisors is an integer number (100472228096).

Almost surely, 2^972212605775 is an apocalyptic number.

972212605775 is a deficient number, since it is larger than the sum of its proper divisors (233454131377).

972212605775 is a wasteful number, since it uses less digits than its factorization.

972212605775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971170 (or 3971165 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 972212605775 in words is "nine hundred seventy-two billion, two hundred twelve million, six hundred five thousand, seven hundred seventy-five".