12546012770 has 24 divisors (see below), whose sum is σ = 23388409044. Its totient is φ = 4845353408.

The previous prime is 12546012763. The next prime is 12546012811. The reversal of 12546012770 is 7721064521.

It can be written as a sum of positive squares in 6 ways, for example, as 5705234089 + 6840778681 = 75533^2 + 82709^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12546012770.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 737489 + ... + 754308.

Almost surely, 2^12546012770 is an apocalyptic number.

12546012770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12546012770 is a deficient number, since it is larger than the sum of its proper divisors (10842396274).

12546012770 is a wasteful number, since it uses less digits than its factorization.

12546012770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491862 (or 1491833 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 12546012770 in words is "twelve billion, five hundred forty-six million, twelve thousand, seven hundred seventy".