77735155285657 has 16 divisors (see below), whose sum is σ = 81873568268800. Its totient is φ = 73601459585280.

The previous prime is 77735155285643. The next prime is 77735155285673. The reversal of 77735155285657 is 75658255153777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77735155285657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77735155285657.

It is not an unprimeable number, because it can be changed into a prime (77735155288657) 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, 349591969 + ... + 349814257.

It is an arithmetic number, because the mean of its divisors is an integer number (5117098016800).

Almost surely, 2^{77735155285657} is an apocalyptic number.

It is an amenable number.

77735155285657 is a deficient number, since it is larger than the sum of its proper divisors (4138412983143).

77735155285657 is a wasteful number, since it uses less digits than its factorization.

77735155285657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232816.

The product of its digits is 2160900000, while the sum is 73.

The spelling of 77735155285657 in words is "seventy-seven trillion, seven hundred thirty-five billion, one hundred fifty-five million, two hundred eighty-five thousand, six hundred fifty-seven".