87537873425 has 12 divisors (see below), whose sum is σ = 108578361180. Its totient is φ = 70010041920.

The previous prime is 87537873419. The next prime is 87537873433. The reversal of 87537873425 is 52437873578.

It is a Cunningham number, because it is equal to 295868²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1163014609 + 86374858816 = 34103^2 + 293896^2 .

It is a de Polignac number, because none of the positive numbers 2^k-87537873425 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417962 + ... + 591411.

It is an arithmetic number, because the mean of its divisors is an integer number (9048196765).

Almost surely, 2^87537873425 is an apocalyptic number.

It is an amenable number.

87537873425 is a deficient number, since it is larger than the sum of its proper divisors (21040487755).

87537873425 is a wasteful number, since it uses less digits than its factorization.

87537873425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012852 (or 1012847 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 59.

The spelling of 87537873425 in words is "eighty-seven billion, five hundred thirty-seven million, eight hundred seventy-three thousand, four hundred twenty-five".