3556138424744 has 32 divisors (see below), whose sum is σ = 6707913523200. Its totient is φ = 1767376054080.

The previous prime is 3556138424669. The next prime is 3556138424747. The reversal of 3556138424744 is 4474248316553.

It is a super-2 number, since 2×3556138424744² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3556138424744.

It is not an unprimeable number, because it can be changed into a prime (3556138424747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044494 + ... + 2864130.

It is an arithmetic number, because the mean of its divisors is an integer number (209622297600).

Almost surely, 2^{3556138424744} is an apocalyptic number.

It is an amenable number.

3556138424744 is a deficient number, since it is larger than the sum of its proper divisors (3151775098456).

3556138424744 is a wasteful number, since it uses less digits than its factorization.

3556138424744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821113 (or 1821109 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 56.

The spelling of 3556138424744 in words is "three trillion, five hundred fifty-six billion, one hundred thirty-eight million, four hundred twenty-four thousand, seven hundred forty-four".