744568540452 has 54 divisors (see below), whose sum is σ = 2068758746054. Its totient is φ = 225626829120.

The previous prime is 744568540439. The next prime is 744568540477. The reversal of 744568540452 is 254045865447.

744568540452 is a `hidden beast` number, since 7 + 4 + 4 + 56 + 8 + 540 + 45 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 738544296996 + 6024243456 = 859386^2 + 77616^2 .

It is a super-2 number, since 2×744568540452² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 85460353 + ... + 85469064.

Almost surely, 2^744568540452 is an apocalyptic number.

It is an amenable number.

744568540452 is an abundant number, since it is smaller than the sum of its proper divisors (1324190205602).

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

744568540452 is a wasteful number, since it uses less digits than its factorization.

744568540452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170929449 (or 170929433 counting only the distinct ones).

The product of its (nonzero) digits is 21504000, while the sum is 54.

The spelling of 744568540452 in words is "seven hundred forty-four billion, five hundred sixty-eight million, five hundred forty thousand, four hundred fifty-two".