87765353507 has 8 divisors (see below), whose sum is σ = 96065986800. Its totient is φ = 79686070560.

The previous prime is 87765353491. The next prime is 87765353531. The reversal of 87765353507 is 70535356778.

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

It is a cyclic number.

It is not a de Polignac number, because 87765353507 - 2⁴ = 87765353491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87765353567) 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, 55336757 + ... + 55338342.

It is an arithmetic number, because the mean of its divisors is an integer number (12008248350).

Almost surely, 2^87765353507 is an apocalyptic number.

87765353507 is a deficient number, since it is larger than the sum of its proper divisors (8300633293).

87765353507 is a wasteful number, since it uses less digits than its factorization.

87765353507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110675173.

The product of its (nonzero) digits is 18522000, while the sum is 56.

The spelling of 87765353507 in words is "eighty-seven billion, seven hundred sixty-five million, three hundred fifty-three thousand, five hundred seven".