8978466974731 has 4 divisors (see below), whose sum is σ = 8979238796472. Its totient is φ = 8977695152992.

The previous prime is 8978466974707. The next prime is 8978466974749. The reversal of 8978466974731 is 1374796648798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8978466974731 - 2²⁷ = 8978332757003 is a prime.

It is a super-2 number, since 2×8978466974731² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8978466974131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385893421 + ... + 385916686.

It is an arithmetic number, because the mean of its divisors is an integer number (2244809699118).

Almost surely, 2^{8978466974731} is an apocalyptic number.

8978466974731 is a deficient number, since it is larger than the sum of its proper divisors (771821741).

8978466974731 is a wasteful number, since it uses less digits than its factorization.

8978466974731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771821740.

The product of its digits is 3072577536, while the sum is 79.

The spelling of 8978466974731 in words is "eight trillion, nine hundred seventy-eight billion, four hundred sixty-six million, nine hundred seventy-four thousand, seven hundred thirty-one".