992785851 has 12 divisors (see below), whose sum is σ = 1434482712. Its totient is φ = 661645536.

The previous prime is 992785847. The next prime is 992785879. The reversal of 992785851 is 158587299.

It is not a de Polignac number, because 992785851 - 2² = 992785847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (992785151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15295 + ... + 47111.

It is an arithmetic number, because the mean of its divisors is an integer number (119540226).

Almost surely, 2^992785851 is an apocalyptic number.

992785851 is a deficient number, since it is larger than the sum of its proper divisors (441696861).

992785851 is a wasteful number, since it uses less digits than its factorization.

992785851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35290 (or 35287 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 54.

The square root of 992785851 is about 31508.5044234092. The cubic root of 992785851 is about 997.5894777179.

The spelling of 992785851 in words is "nine hundred ninety-two million, seven hundred eighty-five thousand, eight hundred fifty-one".