9977702156631 has 48 divisors (see below), whose sum is σ = 15784873004160. Its totient is φ = 6023095162560.

The previous prime is 9977702156629. The next prime is 9977702156633. The reversal of 9977702156631 is 1366512077799.

It is an interprime number because it is at equal distance from previous prime (9977702156629) and next prime (9977702156633).

It is not a de Polignac number, because 9977702156631 - 2¹ = 9977702156629 is a prime.

It is a super-2 number, since 2×9977702156631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9977702156633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77899600 + ... + 78027578.

It is an arithmetic number, because the mean of its divisors is an integer number (328851520920).

Almost surely, 2^{9977702156631} is an apocalyptic number.

9977702156631 is a deficient number, since it is larger than the sum of its proper divisors (5807170847529).

9977702156631 is a wasteful number, since it uses less digits than its factorization.

9977702156631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131116 (or 131113 counting only the distinct ones).

The product of its (nonzero) digits is 30005640, while the sum is 63.

The spelling of 9977702156631 in words is "nine trillion, nine hundred seventy-seven billion, seven hundred two million, one hundred fifty-six thousand, six hundred thirty-one".