977724662712 has 128 divisors (see below), whose sum is σ = 2934520704000. Its totient is φ = 265410782208.

The previous prime is 977724662711. The next prime is 977724662743. The reversal of 977724662712 is 217266427779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977724662711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273373 + ... + 1424844.

It is an arithmetic number, because the mean of its divisors is an integer number (22925943000).

Almost surely, 2^977724662712 is an apocalyptic number.

977724662712 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977724662712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467260352000).

977724662712 is an abundant number, since it is smaller than the sum of its proper divisors (1956796041288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

977724662712 is a wasteful number, since it uses less digits than its factorization.

977724662712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698405 (or 1698401 counting only the distinct ones).

The product of its digits is 24893568, while the sum is 60.

The spelling of 977724662712 in words is "nine hundred seventy-seven billion, seven hundred twenty-four million, six hundred sixty-two thousand, seven hundred twelve".