83187687625 has 16 divisors (see below), whose sum is σ = 118649411712. Its totient is φ = 57042985200.

The previous prime is 83187687623. The next prime is 83187687629. The reversal of 83187687625 is 52678678138.

It is not a de Polignac number, because 83187687625 - 2¹ = 83187687623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83187687623) 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, 47534947 + ... + 47536696.

It is an arithmetic number, because the mean of its divisors is an integer number (7415588232).

Almost surely, 2^83187687625 is an apocalyptic number.

It is an amenable number.

83187687625 is a deficient number, since it is larger than the sum of its proper divisors (35461724087).

83187687625 is an equidigital number, since it uses as much as digits as its factorization.

83187687625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95071665 (or 95071655 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 61.

The spelling of 83187687625 in words is "eighty-three billion, one hundred eighty-seven million, six hundred eighty-seven thousand, six hundred twenty-five".