12758475544 has 16 divisors (see below), whose sum is σ = 24962235120. Its totient is φ = 6101879520.

The previous prime is 12758475517. The next prime is 12758475551. The reversal of 12758475544 is 44557485721.

It is a junction number, because it is equal to n+sod(n) for n = 12758475491 and 12758475500.

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, 34669587 + ... + 34669954.

It is an arithmetic number, because the mean of its divisors is an integer number (1560139695).

Almost surely, 2^12758475544 is an apocalyptic number.

It is an amenable number.

12758475544 is a deficient number, since it is larger than the sum of its proper divisors (12203759576).

12758475544 is a wasteful number, since it uses less digits than its factorization.

12758475544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69339570 (or 69339566 counting only the distinct ones).

The product of its digits is 6272000, while the sum is 52.

The spelling of 12758475544 in words is "twelve billion, seven hundred fifty-eight million, four hundred seventy-five thousand, five hundred forty-four".