83181963094887 has 16 divisors (see below), whose sum is σ = 110965307847680. Its totient is φ = 55426633502112.

The previous prime is 83181963094877. The next prime is 83181963094961. The reversal of 83181963094887 is 78849036918138.

It is not a de Polignac number, because 83181963094887 - 2¹⁴ = 83181963078503 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 (83181963094807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102600414 + ... + 103407972.

It is an arithmetic number, because the mean of its divisors is an integer number (6935331740480).

Almost surely, 2^{83181963094887} is an apocalyptic number.

83181963094887 is a deficient number, since it is larger than the sum of its proper divisors (27783344752793).

83181963094887 is a wasteful number, since it uses less digits than its factorization.

83181963094887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824862.

The product of its (nonzero) digits is 501645312, while the sum is 75.

The spelling of 83181963094887 in words is "eighty-three trillion, one hundred eighty-one billion, nine hundred sixty-three million, ninety-four thousand, eight hundred eighty-seven".