6157811157777 has 12 divisors (see below), whose sum is σ = 8946030085044. Its totient is φ = 4081477914720.

The previous prime is 6157811157761. The next prime is 6157811157803. The reversal of 6157811157777 is 7777511187516.

6157811157777 is a `hidden beast` number, since 6 + 1 + 57 + 8 + 1 + 1 + 1 + 577 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3828894043536 + 2328917114241 = 1956756^2 + 1526079^2 .

It is not a de Polignac number, because 6157811157777 - 2⁴ = 6157811157761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6157811157077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1977458674 + ... + 1977461787.

It is an arithmetic number, because the mean of its divisors is an integer number (745502507087).

Almost surely, 2^{6157811157777} is an apocalyptic number.

It is an amenable number.

6157811157777 is a deficient number, since it is larger than the sum of its proper divisors (2788218927267).

6157811157777 is a wasteful number, since it uses less digits than its factorization.

6157811157777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954920640 (or 3954920637 counting only the distinct ones).

The product of its digits is 20168400, while the sum is 63.

The spelling of 6157811157777 in words is "six trillion, one hundred fifty-seven billion, eight hundred eleven million, one hundred fifty-seven thousand, seven hundred seventy-seven".