77875551318 has 32 divisors (see below), whose sum is σ = 156397432320. Its totient is φ = 25850884320.

The previous prime is 77875551317. The next prime is 77875551359. The reversal of 77875551318 is 81315557877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77875551317) 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, 3988596 + ... + 4008072.

It is an arithmetic number, because the mean of its divisors is an integer number (4887419760).

Almost surely, 2^77875551318 is an apocalyptic number.

77875551318 is an abundant number, since it is smaller than the sum of its proper divisors (78521881002).

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

77875551318 is a wasteful number, since it uses less digits than its factorization.

77875551318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22212.

The product of its digits is 8232000, while the sum is 57.

The spelling of 77875551318 in words is "seventy-seven billion, eight hundred seventy-five million, five hundred fifty-one thousand, three hundred eighteen".