36240256521 has 128 divisors (see below), whose sum is σ = 65144217600. Its totient is φ = 19466092800.

The previous prime is 36240256511. The next prime is 36240256573. The reversal of 36240256521 is 12565204263.

36240256521 is a `hidden beast` number, since 3 + 624 + 0 + 2 + 5 + 6 + 5 + 21 = 666.

It is not a de Polignac number, because 36240256521 - 2¹⁰ = 36240255497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36240256501) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 86492050 + ... + 86492468.

It is an arithmetic number, because the mean of its divisors is an integer number (508939200).

Almost surely, 2^36240256521 is an apocalyptic number.

It is an amenable number.

36240256521 is a deficient number, since it is larger than the sum of its proper divisors (28903961079).

36240256521 is a wasteful number, since it uses less digits than its factorization.

36240256521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 36240256521 in words is "thirty-six billion, two hundred forty million, two hundred fifty-six thousand, five hundred twenty-one".