12044512540 has 12 divisors (see below), whose sum is σ = 25293476376. Its totient is φ = 4817805008.

The previous prime is 12044512537. The next prime is 12044512567. The reversal of 12044512540 is 4521544021.

It is a junction number, because it is equal to n+sod(n) for n = 12044512499 and 12044512508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301112794 + ... + 301112833.

It is an arithmetic number, because the mean of its divisors is an integer number (2107789698).

Almost surely, 2^12044512540 is an apocalyptic number.

12044512540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12044512540 is an abundant number, since it is smaller than the sum of its proper divisors (13248963836).

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

12044512540 is a wasteful number, since it uses less digits than its factorization.

12044512540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602225636 (or 602225634 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 12044512540 in words is "twelve billion, forty-four million, five hundred twelve thousand, five hundred forty".