3561616489472 has 44 divisors (see below), whose sum is σ = 7121250099696. Its totient is φ = 1780434247680.

The previous prime is 3561616489447. The next prime is 3561616489567. The reversal of 3561616489472 is 2749846161653.

It is a super-2 number, since 2×3561616489472² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545197 + ... + 5270867.

Almost surely, 2^{3561616489472} is an apocalyptic number.

3561616489472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3561616489472 is a deficient number, since it is larger than the sum of its proper divisors (3559633610224).

3561616489472 is an equidigital number, since it uses as much as digits as its factorization.

3561616489472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730484 (or 730466 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 62.

The spelling of 3561616489472 in words is "three trillion, five hundred sixty-one billion, six hundred sixteen million, four hundred eighty-nine thousand, four hundred seventy-two".