977870162631 has 16 divisors (see below), whose sum is σ = 1328815090656. Its totient is φ = 639426518016.

The previous prime is 977870162629. The next prime is 977870162663. The reversal of 977870162631 is 136261078779.

It is a happy number.

It is not a de Polignac number, because 977870162631 - 2¹ = 977870162629 is a prime.

It is a super-2 number, since 2×977870162631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977870162431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349890 + ... + 1441583.

It is an arithmetic number, because the mean of its divisors is an integer number (83050943166).

Almost surely, 2^977870162631 is an apocalyptic number.

977870162631 is a deficient number, since it is larger than the sum of its proper divisors (350944928025).

977870162631 is a wasteful number, since it uses less digits than its factorization.

977870162631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794962.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 977870162631 in words is "nine hundred seventy-seven billion, eight hundred seventy million, one hundred sixty-two thousand, six hundred thirty-one".