77208468036 has 96 divisors (see below), whose sum is σ = 208189255680. Its totient is φ = 21813525504.

The previous prime is 77208468023. The next prime is 77208468037. The reversal of 77208468036 is 63086480277.

It is a super-2 number, since 2×77208468036² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77208468036.

It is not an unprimeable number, because it can be changed into a prime (77208468037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11591275 + ... + 11597933.

It is an arithmetic number, because the mean of its divisors is an integer number (2168638080).

Almost surely, 2^77208468036 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 77208468036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104094627840).

77208468036 is an abundant number, since it is smaller than the sum of its proper divisors (130980787644).

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

77208468036 is a wasteful number, since it uses less digits than its factorization.

77208468036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8193 (or 8191 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 77208468036 in words is "seventy-seven billion, two hundred eight million, four hundred sixty-eight thousand, thirty-six".