6396977610 has 24 divisors (see below), whose sum is σ = 16632142020. Its totient is φ = 1705860672.

The previous prime is 6396977599. The next prime is 6396977621. The reversal of 6396977610 is 167796936.

It is an interprime number because it is at equal distance from previous prime (6396977599) and next prime (6396977621).

It can be written as a sum of positive squares in 2 ways, for example, as 5641662321 + 755315289 = 75111^2 + 27483^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35538675 + ... + 35538854.

Almost surely, 2^6396977610 is an apocalyptic number.

6396977610 is an abundant number, since it is smaller than the sum of its proper divisors (10235164410).

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

6396977610 is a wasteful number, since it uses less digits than its factorization.

6396977610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71077542 (or 71077539 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The square root of 6396977610 is about 79981.1078317874. The cubic root of 6396977610 is about 1856.3432230160.

The spelling of 6396977610 in words is "six billion, three hundred ninety-six million, nine hundred seventy-seven thousand, six hundred ten".