87434465839 has 8 divisors (see below), whose sum is σ = 101563220768. Its totient is φ = 73715240160.

The previous prime is 87434465831. The next prime is 87434465863. The reversal of 87434465839 is 93856443478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87434465839 - 2³ = 87434465831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87434465831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102381852 + ... + 102382705.

It is an arithmetic number, because the mean of its divisors is an integer number (12695402596).

Almost surely, 2^87434465839 is an apocalyptic number.

87434465839 is a deficient number, since it is larger than the sum of its proper divisors (14128754929).

87434465839 is a wasteful number, since it uses less digits than its factorization.

87434465839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204764625.

The product of its digits is 69672960, while the sum is 61.

The spelling of 87434465839 in words is "eighty-seven billion, four hundred thirty-four million, four hundred sixty-five thousand, eight hundred thirty-nine".