82991092801 has 8 divisors (see below), whose sum is σ = 84169171008. Its totient is φ = 81813270000.

The previous prime is 82991092783. The next prime is 82991092823. The reversal of 82991092801 is 10829019928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82991092801 - 2¹⁹ = 82990568513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82991092861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646251 + ... + 763951.

It is an arithmetic number, because the mean of its divisors is an integer number (10521146376).

Almost surely, 2^82991092801 is an apocalyptic number.

It is an amenable number.

82991092801 is a deficient number, since it is larger than the sum of its proper divisors (1178078207).

82991092801 is a wasteful number, since it uses less digits than its factorization.

82991092801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127703.

The product of its (nonzero) digits is 186624, while the sum is 49.

The spelling of 82991092801 in words is "eighty-two billion, nine hundred ninety-one million, ninety-two thousand, eight hundred one".