6977578825 has 48 divisors (see below), whose sum is σ = 10145322880. Its totient is φ = 4660830720.

The previous prime is 6977578813. The next prime is 6977578847. The reversal of 6977578825 is 5288757796.

It is a happy number.

It is not a de Polignac number, because 6977578825 - 2¹⁹ = 6977054537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3437911 + ... + 3439939.

Almost surely, 2^6977578825 is an apocalyptic number.

It is an amenable number.

6977578825 is a deficient number, since it is larger than the sum of its proper divisors (3167744055).

6977578825 is a wasteful number, since it uses less digits than its factorization.

6977578825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546 (or 2541 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 64.

The square root of 6977578825 is about 83531.9030371031. The cubic root of 6977578825 is about 1910.8866094758.

The spelling of 6977578825 in words is "six billion, nine hundred seventy-seven million, five hundred seventy-eight thousand, eight hundred twenty-five".