12570923855 has 32 divisors (see below), whose sum is σ = 17622226944. Its totient is φ = 8429331456.

The previous prime is 12570923851. The next prime is 12570923867. The reversal of 12570923855 is 55832907521.

It is not a de Polignac number, because 12570923855 - 2² = 12570923851 is a prime.

It is a super-2 number, since 2×12570923855² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12570923851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2436959 + ... + 2442111.

It is an arithmetic number, because the mean of its divisors is an integer number (550694592).

Almost surely, 2^12570923855 is an apocalyptic number.

12570923855 is a deficient number, since it is larger than the sum of its proper divisors (5051303089).

12570923855 is a wasteful number, since it uses less digits than its factorization.

12570923855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6695.

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 12570923855 in words is "twelve billion, five hundred seventy million, nine hundred twenty-three thousand, eight hundred fifty-five".