12571277564 has 12 divisors (see below), whose sum is σ = 22000522488. Its totient is φ = 6285414000.

The previous prime is 12571277549. The next prime is 12571277597. The reversal of 12571277564 is 46577217521.

It is a super-2 number, since 2×12571277564² (a number of 21 digits) contains 22 as substring.

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, 179159 + ... + 239249.

It is an arithmetic number, because the mean of its divisors is an integer number (1833376874).

Almost surely, 2^12571277564 is an apocalyptic number.

It is an amenable number.

12571277564 is a deficient number, since it is larger than the sum of its proper divisors (9429244924).

12571277564 is a wasteful number, since it uses less digits than its factorization.

12571277564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112396 (or 112394 counting only the distinct ones).

The product of its digits is 823200, while the sum is 47.

The spelling of 12571277564 in words is "twelve billion, five hundred seventy-one million, two hundred seventy-seven thousand, five hundred sixty-four".