86924673887 has 4 divisors (see below), whose sum is σ = 92037890016. Its totient is φ = 81811457760.

The previous prime is 86924673793. The next prime is 86924673917. The reversal of 86924673887 is 78837642968.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86924673887 - 2²⁴ = 86907896671 is a prime.

It is a super-2 number, since 2×86924673887² (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 (86924670887) 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, 2556608039 + ... + 2556608072.

It is an arithmetic number, because the mean of its divisors is an integer number (23009472504).

Almost surely, 2^86924673887 is an apocalyptic number.

86924673887 is a deficient number, since it is larger than the sum of its proper divisors (5113216129).

86924673887 is a wasteful number, since it uses less digits than its factorization.

86924673887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113216128.

The product of its digits is 195084288, while the sum is 68.

The spelling of 86924673887 in words is "eighty-six billion, nine hundred twenty-four million, six hundred seventy-three thousand, eight hundred eighty-seven".