92643783991 has 32 divisors (see below), whose sum is σ = 104974313472. Its totient is φ = 81000000000.

The previous prime is 92643783983. The next prime is 92643783997. The reversal of 92643783991 is 19938734629.

It is a 9-Lehmer number, since φ(92643783991) divides (92643783991-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 92643783991 - 2³ = 92643783983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92643783997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51439291 + ... + 51441091.

It is an arithmetic number, because the mean of its divisors is an integer number (3280447296).

Almost surely, 2^92643783991 is an apocalyptic number.

92643783991 is a deficient number, since it is larger than the sum of its proper divisors (12330529481).

92643783991 is a wasteful number, since it uses less digits than its factorization.

92643783991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695.

The product of its digits is 17635968, while the sum is 61.

The spelling of 92643783991 in words is "ninety-two billion, six hundred forty-three million, seven hundred eighty-three thousand, nine hundred ninety-one".