972977779958 has 8 divisors (see below), whose sum is σ = 1459949466528. Its totient is φ = 486327957784.

The previous prime is 972977779931. The next prime is 972977780039. The reversal of 972977779958 is 859977779279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 972977779958.

It is a congruent number.

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, 80458541 + ... + 80470632.

It is an arithmetic number, because the mean of its divisors is an integer number (182493683316).

Almost surely, 2^972977779958 is an apocalyptic number.

972977779958 is a deficient number, since it is larger than the sum of its proper divisors (486971686570).

972977779958 is a wasteful number, since it uses less digits than its factorization.

972977779958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160932198.

The product of its digits is 8821658160, while the sum is 86.

The spelling of 972977779958 in words is "nine hundred seventy-two billion, nine hundred seventy-seven million, seven hundred seventy-nine thousand, nine hundred fifty-eight".