77702863161 has 32 divisors (see below), whose sum is σ = 129184459776. Its totient is φ = 40360104000.

The previous prime is 77702863153. The next prime is 77702863207. The reversal of 77702863161 is 16136820777.

It is not a de Polignac number, because 77702863161 - 2³ = 77702863153 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 77702863161.

It is not an unprimeable number, because it can be changed into a prime (77702863111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2493406 + ... + 2524376.

It is an arithmetic number, because the mean of its divisors is an integer number (4037014368).

Almost surely, 2^77702863161 is an apocalyptic number.

It is an amenable number.

77702863161 is a deficient number, since it is larger than the sum of its proper divisors (51481596615).

77702863161 is a wasteful number, since it uses less digits than its factorization.

77702863161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41853.

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 77702863161 in words is "seventy-seven billion, seven hundred two million, eight hundred sixty-three thousand, one hundred sixty-one".