87763819513 has 4 divisors (see below), whose sum is σ = 87772896640. Its totient is φ = 87754742388.

The previous prime is 87763819511. The next prime is 87763819547. The reversal of 87763819513 is 31591836778.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87763819513 - 2¹ = 87763819511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87763819511) 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, 4524045 + ... + 4543402.

It is an arithmetic number, because the mean of its divisors is an integer number (21943224160).

Almost surely, 2^87763819513 is an apocalyptic number.

It is an amenable number.

87763819513 is a deficient number, since it is larger than the sum of its proper divisors (9077127).

87763819513 is an equidigital number, since it uses as much as digits as its factorization.

87763819513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077126.

The product of its digits is 7620480, while the sum is 58.

The spelling of 87763819513 in words is "eighty-seven billion, seven hundred sixty-three million, eight hundred nineteen thousand, five hundred thirteen".