78992280916 has 12 divisors (see below), whose sum is σ = 141177693888. Its totient is φ = 38655796952.

The previous prime is 78992280901. The next prime is 78992280919. The reversal of 78992280916 is 61908229987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78992280919) 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, 210085666 + ... + 210086041.

It is an arithmetic number, because the mean of its divisors is an integer number (11764807824).

Almost surely, 2^78992280916 is an apocalyptic number.

It is an amenable number.

78992280916 is a deficient number, since it is larger than the sum of its proper divisors (62185412972).

78992280916 is a wasteful number, since it uses less digits than its factorization.

78992280916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420171758 (or 420171756 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 78992280916 in words is "seventy-eight billion, nine hundred ninety-two million, two hundred eighty thousand, nine hundred sixteen".