87145624425 has 48 divisors (see below), whose sum is σ = 148820871680. Its totient is φ = 44950464000.

The previous prime is 87145624381. The next prime is 87145624427. The reversal of 87145624425 is 52442654178.

It is not a de Polignac number, because 87145624425 - 2¹⁰ = 87145623401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87145624427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4037061 + ... + 4058589.

Almost surely, 2^87145624425 is an apocalyptic number.

It is an amenable number.

87145624425 is a deficient number, since it is larger than the sum of its proper divisors (61675247255).

87145624425 is a wasteful number, since it uses less digits than its factorization.

87145624425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23314 (or 23309 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 48.

The spelling of 87145624425 in words is "eighty-seven billion, one hundred forty-five million, six hundred twenty-four thousand, four hundred twenty-five".