77509376106216 has 16 divisors (see below), whose sum is σ = 193773440265600. Its totient is φ = 25836458702064.

The previous prime is 77509376106193. The next prime is 77509376106233. The reversal of 77509376106216 is 61260167390577.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77509376106216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614778668856 + ... + 1614778668903.

It is an arithmetic number, because the mean of its divisors is an integer number (12110840016600).

Almost surely, 2^{77509376106216} is an apocalyptic number.

It is an amenable number.

77509376106216 is an abundant number, since it is smaller than the sum of its proper divisors (116264064159384).

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

77509376106216 is a wasteful number, since it uses less digits than its factorization.

77509376106216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229557337768 (or 3229557337764 counting only the distinct ones).

The product of its (nonzero) digits is 20003760, while the sum is 60.

The spelling of 77509376106216 in words is "seventy-seven trillion, five hundred nine billion, three hundred seventy-six million, one hundred six thousand, two hundred sixteen".