87807105263 has 4 divisors (see below), whose sum is σ = 92972229120. Its totient is φ = 82641981408.

The previous prime is 87807105251. The next prime is 87807105319. The reversal of 87807105263 is 36250170878.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87807105263 - 2²⁰ = 87806056687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87807105223) 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, 2582561903 + ... + 2582561936.

It is an arithmetic number, because the mean of its divisors is an integer number (23243057280).

Almost surely, 2^87807105263 is an apocalyptic number.

87807105263 is a deficient number, since it is larger than the sum of its proper divisors (5165123857).

87807105263 is a wasteful number, since it uses less digits than its factorization.

87807105263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165123856.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 87807105263 in words is "eighty-seven billion, eight hundred seven million, one hundred five thousand, two hundred sixty-three".