972974837878 has 8 divisors (see below), whose sum is σ = 1468201552272. Its totient is φ = 483574320456.

The previous prime is 972974837851. The next prime is 972974837911. The reversal of 972974837878 is 878738479279.

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

It is a junction number, because it is equal to n+sod(n) for n = 972974837798 and 972974837807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456548825 + ... + 1456549492.

It is an arithmetic number, because the mean of its divisors is an integer number (183525194034).

Almost surely, 2^972974837878 is an apocalyptic number.

972974837878 is a deficient number, since it is larger than the sum of its proper divisors (495226714394).

972974837878 is a wasteful number, since it uses less digits than its factorization.

972974837878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913098486.

The product of its digits is 2389782528, while the sum is 79.

The spelling of 972974837878 in words is "nine hundred seventy-two billion, nine hundred seventy-four million, eight hundred thirty-seven thousand, eight hundred seventy-eight".