12857214735 has 24 divisors (see below), whose sum is σ = 22289523984. Its totient is φ = 6856047360.

The previous prime is 12857214677. The next prime is 12857214803. The reversal of 12857214735 is 53741275821.

12857214735 is a `hidden beast` number, since 1 + 2 + 8 + 572 + 1 + 4 + 73 + 5 = 666.

It is not a de Polignac number, because 12857214735 - 2¹⁰ = 12857213711 is a prime.

It is a super-2 number, since 2×12857214735² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300384 + ... + 340506.

It is an arithmetic number, because the mean of its divisors is an integer number (928730166).

Almost surely, 2^12857214735 is an apocalyptic number.

12857214735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12857214735 is a deficient number, since it is larger than the sum of its proper divisors (9432309249).

12857214735 is a wasteful number, since it uses less digits than its factorization.

12857214735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47255 (or 47252 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The spelling of 12857214735 in words is "twelve billion, eight hundred fifty-seven million, two hundred fourteen thousand, seven hundred thirty-five".