87294435865 has 32 divisors (see below), whose sum is σ = 134532711936. Its totient is φ = 52852124160.

The previous prime is 87294435863. The next prime is 87294435883. The reversal of 87294435865 is 56853449278.

It is not a de Polignac number, because 87294435865 - 2¹ = 87294435863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87294435863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4160316 + ... + 4181245.

It is an arithmetic number, because the mean of its divisors is an integer number (4204147248).

Almost surely, 2^87294435865 is an apocalyptic number.

It is an amenable number.

87294435865 is a deficient number, since it is larger than the sum of its proper divisors (47238276071).

87294435865 is a wasteful number, since it uses less digits than its factorization.

87294435865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341609.

The product of its digits is 58060800, while the sum is 61.

It can be divided in two parts, 872944 and 35865, that added together give a palindrome (908809).

The spelling of 87294435865 in words is "eighty-seven billion, two hundred ninety-four million, four hundred thirty-five thousand, eight hundred sixty-five".