77986137112522 has 8 divisors (see below), whose sum is σ = 123136005967200. Its totient is φ = 36940801790124.

The previous prime is 77986137112493. The next prime is 77986137112523. The reversal of 77986137112522 is 22521173168977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (77986137112523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026133383022 + ... + 1026133383097.

It is an arithmetic number, because the mean of its divisors is an integer number (15392000745900).

Almost surely, 2^{77986137112522} is an apocalyptic number.

77986137112522 is a deficient number, since it is larger than the sum of its proper divisors (45149868854678).

77986137112522 is a wasteful number, since it uses less digits than its factorization.

77986137112522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052266766140.

The product of its digits is 17781120, while the sum is 61.

The spelling of 77986137112522 in words is "seventy-seven trillion, nine hundred eighty-six billion, one hundred thirty-seven million, one hundred twelve thousand, five hundred twenty-two".