87245567805 has 64 divisors (see below), whose sum is σ = 157278560256. Its totient is φ = 40914720000.

The previous prime is 87245567797. The next prime is 87245567833. The reversal of 87245567805 is 50876554278.

It is not a de Polignac number, because 87245567805 - 2³ = 87245567797 is a prime.

It is a super-2 number, since 2×87245567805² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13843155 + ... + 13849455.

It is an arithmetic number, because the mean of its divisors is an integer number (2457477504).

Almost surely, 2^87245567805 is an apocalyptic number.

It is an amenable number.

87245567805 is a deficient number, since it is larger than the sum of its proper divisors (70032992451).

87245567805 is a wasteful number, since it uses less digits than its factorization.

87245567805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9058.

The product of its (nonzero) digits is 18816000, while the sum is 57.

The spelling of 87245567805 in words is "eighty-seven billion, two hundred forty-five million, five hundred sixty-seven thousand, eight hundred five".