12757561468 has 24 divisors (see below), whose sum is σ = 23157902768. Its totient is φ = 6145082496.

The previous prime is 12757561459. The next prime is 12757561507. The reversal of 12757561468 is 86416575721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495471 + ... + 520582.

Almost surely, 2^12757561468 is an apocalyptic number.

It is an amenable number.

12757561468 is a deficient number, since it is larger than the sum of its proper divisors (10400341300).

12757561468 is a wasteful number, since it uses less digits than its factorization.

12757561468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016173 (or 1016171 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 52.

The spelling of 12757561468 in words is "twelve billion, seven hundred fifty-seven million, five hundred sixty-one thousand, four hundred sixty-eight".