12693531370 has 32 divisors (see below), whose sum is σ = 24634200528. Its totient is φ = 4681456128.

The previous prime is 12693531359. The next prime is 12693531373. The reversal of 12693531370 is 7313539621.

It can be written as a sum of positive squares in 8 ways, for example, as 4701707761 + 7991823609 = 68569^2 + 89397^2 .

It is a super-2 number, since 2×12693531370² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12693531373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58342 + ... + 169678.

Almost surely, 2^12693531370 is an apocalyptic number.

12693531370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12693531370 is a deficient number, since it is larger than the sum of its proper divisors (11940669158).

12693531370 is a wasteful number, since it uses less digits than its factorization.

12693531370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112234.

The product of its (nonzero) digits is 102060, while the sum is 40.

The spelling of 12693531370 in words is "twelve billion, six hundred ninety-three million, five hundred thirty-one thousand, three hundred seventy".