80865552631 has 8 divisors (see below), whose sum is σ = 82884254400. Its totient is φ = 78859274208.

The previous prime is 80865552613. The next prime is 80865552637. The reversal of 80865552631 is 13625556808.

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 80865552631 - 2³¹ = 78718068983 is a prime.

It is a super-2 number, since 2×80865552631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80865552637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3092656 + ... + 3118693.

It is an arithmetic number, because the mean of its divisors is an integer number (10360531800).

Almost surely, 2^80865552631 is an apocalyptic number.

80865552631 is a deficient number, since it is larger than the sum of its proper divisors (2018701769).

80865552631 is a wasteful number, since it uses less digits than its factorization.

80865552631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211673.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 80865552631 in words is "eighty billion, eight hundred sixty-five million, five hundred fifty-two thousand, six hundred thirty-one".