972688878550 has 48 divisors (see below), whose sum is σ = 1866670971840. Its totient is φ = 376902339840.

The previous prime is 972688878541. The next prime is 972688878583. The reversal of 972688878550 is 55878886279.

It is a super-2 number, since 2×972688878550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2113767 + ... + 2532466.

It is an arithmetic number, because the mean of its divisors is an integer number (38888978580).

Almost surely, 2^972688878550 is an apocalyptic number.

972688878550 is a deficient number, since it is larger than the sum of its proper divisors (893982093290).

972688878550 is a wasteful number, since it uses less digits than its factorization.

972688878550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646377 (or 4646372 counting only the distinct ones).

The product of its (nonzero) digits is 541900800, while the sum is 73.

The spelling of 972688878550 in words is "nine hundred seventy-two billion, six hundred eighty-eight million, eight hundred seventy-eight thousand, five hundred fifty".