77772108930 has 32 divisors (see below), whose sum is σ = 191697741504. Its totient is φ = 20178709056.

The previous prime is 77772108919. The next prime is 77772108941. The reversal of 77772108930 is 3980127777.

It is an interprime number because it is at equal distance from previous prime (77772108919) and next prime (77772108941).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35031372 + ... + 35033591.

It is an arithmetic number, because the mean of its divisors is an integer number (5990554422).

Almost surely, 2^77772108930 is an apocalyptic number.

77772108930 is an abundant number, since it is smaller than the sum of its proper divisors (113925632574).

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

77772108930 is a wasteful number, since it uses less digits than its factorization.

77772108930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70065010.

The product of its (nonzero) digits is 1037232, while the sum is 51.

The spelling of 77772108930 in words is "seventy-seven billion, seven hundred seventy-two million, one hundred eight thousand, nine hundred thirty".