87750063957 has 4 divisors (see below), whose sum is σ = 117000085280. Its totient is φ = 58500042636.

The previous prime is 87750063953. The next prime is 87750063977. The reversal of 87750063957 is 75936005778.

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 not a de Polignac number, because 87750063957 - 2² = 87750063953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87750063897 and 87750063906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87750063953) 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, 14625010657 + ... + 14625010662.

It is an arithmetic number, because the mean of its divisors is an integer number (29250021320).

Almost surely, 2^87750063957 is an apocalyptic number.

It is an amenable number.

87750063957 is a deficient number, since it is larger than the sum of its proper divisors (29250021323).

87750063957 is a wasteful number, since it uses less digits than its factorization.

87750063957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29250021322.

The product of its (nonzero) digits is 11113200, while the sum is 57.

The spelling of 87750063957 in words is "eighty-seven billion, seven hundred fifty million, sixty-three thousand, nine hundred fifty-seven".