92821313978 has 16 divisors (see below), whose sum is σ = 142203855744. Its totient is φ = 45420160800.

The previous prime is 92821313971. The next prime is 92821313989. The reversal of 92821313978 is 87931312829.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (92821313971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134553 + ... + 2177603.

It is an arithmetic number, because the mean of its divisors is an integer number (8887740984).

Almost surely, 2^92821313978 is an apocalyptic number.

92821313978 is a deficient number, since it is larger than the sum of its proper divisors (49382541766).

92821313978 is a wasteful number, since it uses less digits than its factorization.

92821313978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66037.

The product of its digits is 1306368, while the sum is 53.

The spelling of 92821313978 in words is "ninety-two billion, eight hundred twenty-one million, three hundred thirteen thousand, nine hundred seventy-eight".