77127707543164 has 24 divisors (see below), whose sum is σ = 135499924269360. Its totient is φ = 38413446230016.

The previous prime is 77127707543119. The next prime is 77127707543171. The reversal of 77127707543164 is 46134570772177.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138521694 + ... + 139077370.

It is an arithmetic number, because the mean of its divisors is an integer number (5645830177890).

Almost surely, 2^{77127707543164} is an apocalyptic number.

It is an amenable number.

77127707543164 is a deficient number, since it is larger than the sum of its proper divisors (58372216726196).

77127707543164 is a wasteful number, since it uses less digits than its factorization.

77127707543164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690957 (or 690955 counting only the distinct ones).

The product of its (nonzero) digits is 48404160, while the sum is 61.

The spelling of 77127707543164 in words is "seventy-seven trillion, one hundred twenty-seven billion, seven hundred seven million, five hundred forty-three thousand, one hundred sixty-four".