83767561231 has 8 divisors (see below), whose sum is σ = 84020795280. Its totient is φ = 83514497472.

The previous prime is 83767561201. The next prime is 83767561271. The reversal of 83767561231 is 13216576738.

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 83767561231 - 2⁷ = 83767561103 is a prime.

It is a super-2 number, since 2×83767561231² (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 (83767561201) 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, 979611 + ... + 1061683.

It is an arithmetic number, because the mean of its divisors is an integer number (10502599410).

Almost surely, 2^83767561231 is an apocalyptic number.

83767561231 is a deficient number, since it is larger than the sum of its proper divisors (253234049).

83767561231 is a wasteful number, since it uses less digits than its factorization.

83767561231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85145.

The product of its digits is 1270080, while the sum is 49.

The spelling of 83767561231 in words is "eighty-three billion, seven hundred sixty-seven million, five hundred sixty-one thousand, two hundred thirty-one".