6977856379824 has 90 divisors (see below), whose sum is σ = 21464997993348. Its totient is φ = 2114501928000.

The previous prime is 6977856379811. The next prime is 6977856379843. The reversal of 6977856379824 is 4289736587796.

It is a happy number.

6977856379824 is a `hidden beast` number, since 6 + 97 + 7 + 85 + 6 + 379 + 82 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 200219502 + ... + 200254349.

Almost surely, 2^{6977856379824} is an apocalyptic number.

It is an amenable number.

6977856379824 is an abundant number, since it is smaller than the sum of its proper divisors (14487141613524).

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

6977856379824 is a wasteful number, since it uses less digits than its factorization.

6977856379824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400473887 (or 400473867 counting only the distinct ones).

The product of its digits is 7681443840, while the sum is 81.

The spelling of 6977856379824 in words is "six trillion, nine hundred seventy-seven billion, eight hundred fifty-six million, three hundred seventy-nine thousand, eight hundred twenty-four".