1992501865 has 16 divisors (see below), whose sum is σ = 2435040576. Its totient is φ = 1564747200.

The previous prime is 1992501859. The next prime is 1992501923. The reversal of 1992501865 is 5681052991.

It is not a de Polignac number, because 1992501865 - 2⁷ = 1992501737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153270 + ... + 165760.

It is an arithmetic number, because the mean of its divisors is an integer number (152190036).

Almost surely, 2^1992501865 is an apocalyptic number.

It is an amenable number.

1992501865 is a deficient number, since it is larger than the sum of its proper divisors (442538711).

1992501865 is a wasteful number, since it uses less digits than its factorization.

1992501865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080.

The product of its (nonzero) digits is 194400, while the sum is 46.

The square root of 1992501865 is about 44637.4491318668. The cubic root of 1992501865 is about 1258.3445684517.

The spelling of 1992501865 in words is "one billion, nine hundred ninety-two million, five hundred one thousand, eight hundred sixty-five".