108974086487 has 4 divisors (see below), whose sum is σ = 124541813136. Its totient is φ = 93406359840.

The previous prime is 108974086453. The next prime is 108974086547. The reversal of 108974086487 is 784680479801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784680479801 = 251 ⋅3126217051.

It is a cyclic number.

It is not a de Polignac number, because 108974086487 - 2²⁸ = 108705651031 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 (108974086447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7783863314 + ... + 7783863327.

It is an arithmetic number, because the mean of its divisors is an integer number (31135453284).

Almost surely, 2^108974086487 is an apocalyptic number.

108974086487 is a deficient number, since it is larger than the sum of its proper divisors (15567726649).

108974086487 is an equidigital number, since it uses as much as digits as its factorization.

108974086487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15567726648.

The product of its (nonzero) digits is 21676032, while the sum is 62.

The spelling of 108974086487 in words is "one hundred eight billion, nine hundred seventy-four million, eighty-six thousand, four hundred eighty-seven".