83687132499 has 16 divisors (see below), whose sum is σ = 117646039680. Its totient is φ = 52769344320.

The previous prime is 83687132429. The next prime is 83687132531. The reversal of 83687132499 is 99423178638.

It is not a de Polignac number, because 83687132499 - 2⁹ = 83687131987 is a prime.

It is a super-2 number, since 2×83687132499² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83687132429) 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, 1154617 + ... + 1224954.

It is an arithmetic number, because the mean of its divisors is an integer number (7352877480).

Almost surely, 2^83687132499 is an apocalyptic number.

83687132499 is a deficient number, since it is larger than the sum of its proper divisors (33958907181).

83687132499 is a wasteful number, since it uses less digits than its factorization.

83687132499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380210.

The product of its digits is 15676416, while the sum is 60.

The spelling of 83687132499 in words is "eighty-three billion, six hundred eighty-seven million, one hundred thirty-two thousand, four hundred ninety-nine".