976972620021 has 8 divisors (see below), whose sum is σ = 1303089977280. Its totient is φ = 651085171392.

The previous prime is 976972619993. The next prime is 976972620031. The reversal of 976972620021 is 120026279679.

976972620021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 976972620021 - 2¹⁰ = 976972618997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (976972620031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57467241 + ... + 57484238.

It is an arithmetic number, because the mean of its divisors is an integer number (162886247160).

Almost surely, 2^976972620021 is an apocalyptic number.

It is an amenable number.

976972620021 is a deficient number, since it is larger than the sum of its proper divisors (326117357259).

976972620021 is a wasteful number, since it uses less digits than its factorization.

976972620021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114954315.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 976972620021 in words is "nine hundred seventy-six billion, nine hundred seventy-two million, six hundred twenty thousand, twenty-one".