1992916653849 has 45 divisors (see below), whose sum is σ = 3167317896015. Its totient is φ = 1207517699520.

The previous prime is 1992916653821. The next prime is 1992916653877. The reversal of 1992916653849 is 9483566192991.

The square root of 1992916653849 is 1411707.

It is a perfect power (a square), and thus also a powerful number.

1992916653849 is a `hidden beast` number, since 1 + 9 + 9 + 29 + 1 + 66 + 538 + 4 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (1992916653821) and next prime (1992916653877).

It can be written as a sum of positive squares in only one way, i.e., 1444546783449 + 548369870400 = 1201893^2 + 740520^2 .

It is not a de Polignac number, because 1992916653849 - 2⁹ = 1992916653337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1992916653809) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 512447697 + ... + 512451585.

Almost surely, 2^{1992916653849} is an apocalyptic number.

1992916653849 is the 1411707-th square number.

1992916653849 is the 705854-th centered octagonal number.

It is an amenable number.

1992916653849 is a deficient number, since it is larger than the sum of its proper divisors (1174401242166).

1992916653849 is an frugal number, since it uses more digits than its factorization.

1992916653849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7828 (or 3903 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 72.

The spelling of 1992916653849 in words is "one trillion, nine hundred ninety-two billion, nine hundred sixteen million, six hundred fifty-three thousand, eight hundred forty-nine".