544400531604 has 24 divisors (see below), whose sum is σ = 1411408785920. Its totient is φ = 181466843832.

The previous prime is 544400531561. The next prime is 544400531639. The reversal of 544400531604 is 406135004445.

544400531604 is a `hidden beast` number, since 5 + 4 + 4 + 40 + 0 + 5 + 3 + 1 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2520372724 + ... + 2520372939.

Almost surely, 2^544400531604 is an apocalyptic number.

544400531604 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

544400531604 is an abundant number, since it is smaller than the sum of its proper divisors (867008254316).

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

544400531604 is a wasteful number, since it uses less digits than its factorization.

544400531604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040745676 (or 5040745668 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 544400531604 in words is "five hundred forty-four billion, four hundred million, five hundred thirty-one thousand, six hundred four".