12574621785 has 16 divisors (see below), whose sum is σ = 21948431040. Its totient is φ = 6096786240.

The previous prime is 12574621777. The next prime is 12574621793. The reversal of 12574621785 is 58712647521.

It is an interprime number because it is at equal distance from previous prime (12574621777) and next prime (12574621793).

It is not a de Polignac number, because 12574621785 - 2³ = 12574621777 is a prime.

It is a super-4 number, since 4×12574621785⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38104750 + ... + 38105079.

It is an arithmetic number, because the mean of its divisors is an integer number (1371776940).

Almost surely, 2^12574621785 is an apocalyptic number.

12574621785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12574621785 is a deficient number, since it is larger than the sum of its proper divisors (9373809255).

12574621785 is a wasteful number, since it uses less digits than its factorization.

12574621785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76209848.

The product of its digits is 940800, while the sum is 48.

The spelling of 12574621785 in words is "twelve billion, five hundred seventy-four million, six hundred twenty-one thousand, seven hundred eighty-five".