77854533537036 has 96 divisors (see below), whose sum is σ = 191021183236800. Its totient is φ = 24643839467520.

The previous prime is 77854533536999. The next prime is 77854533537091. The reversal of 77854533537036 is 63073533545877.

It is a super-2 number, since 2×77854533537036² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269217576 + ... + 269506608.

It is an arithmetic number, because the mean of its divisors is an integer number (1989803992050).

Almost surely, 2^{77854533537036} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77854533537036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95510591618400).

77854533537036 is an abundant number, since it is smaller than the sum of its proper divisors (113166649699764).

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

77854533537036 is a wasteful number, since it uses less digits than its factorization.

77854533537036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301819 (or 301817 counting only the distinct ones).

The product of its (nonzero) digits is 666792000, while the sum is 66.

The spelling of 77854533537036 in words is "seventy-seven trillion, eight hundred fifty-four billion, five hundred thirty-three million, five hundred thirty-seven thousand, thirty-six".