6977427996 has 48 divisors (see below), whose sum is σ = 20297975040. Its totient is φ = 1812318720.

The previous prime is 6977427991. The next prime is 6977428001. The reversal of 6977427996 is 6997247796.

It is an interprime number because it is at equal distance from previous prime (6977427991) and next prime (6977428001).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6977427991) 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, 3774741 + ... + 3776588.

It is an arithmetic number, because the mean of its divisors is an integer number (422874480).

Almost surely, 2^6977427996 is an apocalyptic number.

6977427996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6977427996 is an abundant number, since it is smaller than the sum of its proper divisors (13320547044).

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

6977427996 is a wasteful number, since it uses less digits than its factorization.

6977427996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7551354 (or 7551352 counting only the distinct ones).

The product of its digits is 72013536, while the sum is 66.

The square root of 6977427996 is about 83531.0002095031. Note that the first 3 decimals coincide. The cubic root of 6977427996 is about 1910.8728406504.

The spelling of 6977427996 in words is "six billion, nine hundred seventy-seven million, four hundred twenty-seven thousand, nine hundred ninety-six".