1992155883 has 12 divisors (see below), whose sum is σ = 2744659944. Its totient is φ = 1285260000.

The previous prime is 1992155861. The next prime is 1992155903. The reversal of 1992155883 is 3885512991.

It is not a de Polignac number, because 1992155883 - 2⁶ = 1992155819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1992155483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342618 + ... + 348383.

It is an arithmetic number, because the mean of its divisors is an integer number (228721662).

Almost surely, 2^1992155883 is an apocalyptic number.

1992155883 is a deficient number, since it is larger than the sum of its proper divisors (752504061).

1992155883 is an equidigital number, since it uses as much as digits as its factorization.

1992155883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691066 (or 691035 counting only the distinct ones).

The product of its digits is 777600, while the sum is 51.

The square root of 1992155883 is about 44633.5734957442. The cubic root of 1992155883 is about 1258.2717304150.

The spelling of 1992155883 in words is "one billion, nine hundred ninety-two million, one hundred fifty-five thousand, eight hundred eighty-three".