12785157613 has 8 divisors (see below), whose sum is σ = 12893449536. Its totient is φ = 12677028000.

The previous prime is 12785157607. The next prime is 12785157631. The reversal of 12785157613 is 31675158721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12785157613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785157313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120313 + ... + 200113.

It is an arithmetic number, because the mean of its divisors is an integer number (1611681192).

Almost surely, 2^12785157613 is an apocalyptic number.

It is an amenable number.

12785157613 is a deficient number, since it is larger than the sum of its proper divisors (108291923).

12785157613 is a wasteful number, since it uses less digits than its factorization.

12785157613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81155.

The product of its digits is 352800, while the sum is 46.

The spelling of 12785157613 in words is "twelve billion, seven hundred eighty-five million, one hundred fifty-seven thousand, six hundred thirteen".