86872156441 has 4 divisors (see below), whose sum is σ = 99282464512. Its totient is φ = 74461848372.

The previous prime is 86872156381. The next prime is 86872156457. The reversal of 86872156441 is 14465127868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86872156441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86872150441) 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, 6205154025 + ... + 6205154038.

It is an arithmetic number, because the mean of its divisors is an integer number (24820616128).

Almost surely, 2^86872156441 is an apocalyptic number.

It is an amenable number.

86872156441 is a deficient number, since it is larger than the sum of its proper divisors (12410308071).

86872156441 is a wasteful number, since it uses less digits than its factorization.

86872156441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12410308070.

The product of its digits is 2580480, while the sum is 52.

The spelling of 86872156441 in words is "eighty-six billion, eight hundred seventy-two million, one hundred fifty-six thousand, four hundred forty-one".