992156920847 has 4 divisors (see below), whose sum is σ = 992270722080. Its totient is φ = 992043119616.

The previous prime is 992156920841. The next prime is 992156920861. The reversal of 992156920847 is 748029651299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 992156920847 - 2¹⁰ = 992156919823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 992156920847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992156920841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56887538 + ... + 56904975.

It is an arithmetic number, because the mean of its divisors is an integer number (248067680520).

Almost surely, 2^992156920847 is an apocalyptic number.

992156920847 is a deficient number, since it is larger than the sum of its proper divisors (113801233).

992156920847 is a wasteful number, since it uses less digits than its factorization.

992156920847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113801232.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 992156920847 in words is "nine hundred ninety-two billion, one hundred fifty-six million, nine hundred twenty thousand, eight hundred forty-seven".