36621439254 has 40 divisors (see below), whose sum is σ = 83967519240. Its totient is φ = 11923257024.

The previous prime is 36621439237. The next prime is 36621439259. The reversal of 36621439254 is 45293412663.

36621439254 is a `hidden beast` number, since 366 + 2 + 1 + 4 + 39 + 254 = 666.

It is a super-2 number, since 2×36621439254² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36621439259) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2621619 + ... + 2635550.

It is an arithmetic number, because the mean of its divisors is an integer number (2099187981).

Almost surely, 2^36621439254 is an apocalyptic number.

36621439254 is an abundant number, since it is smaller than the sum of its proper divisors (47346079986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36621439254 is a wasteful number, since it uses less digits than its factorization.

36621439254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257226 (or 5257217 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The spelling of 36621439254 in words is "thirty-six billion, six hundred twenty-one million, four hundred thirty-nine thousand, two hundred fifty-four".