977943006940 has 48 divisors (see below), whose sum is σ = 2098713867264. Its totient is φ = 382610004800.

The previous prime is 977943006917. The next prime is 977943007031. The reversal of 977943006940 is 49600349779.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145625 + ... + 1807855.

It is an arithmetic number, because the mean of its divisors is an integer number (43723205568).

Almost surely, 2^977943006940 is an apocalyptic number.

It is an amenable number.

977943006940 is an abundant number, since it is smaller than the sum of its proper divisors (1120770860324).

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

977943006940 is a wasteful number, since it uses less digits than its factorization.

977943006940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663858 (or 663856 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 977943006940 in words is "nine hundred seventy-seven billion, nine hundred forty-three million, six thousand, nine hundred forty".