12705912790 has 32 divisors (see below), whose sum is σ = 23405635584. Its totient is φ = 4963926240.

The previous prime is 12705912773. The next prime is 12705912797. The reversal of 12705912790 is 9721950721.

It is a super-2 number, since 2×12705912790² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705912797) 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, 201135 + ... + 256645.

It is an arithmetic number, because the mean of its divisors is an integer number (731426112).

Almost surely, 2^12705912790 is an apocalyptic number.

12705912790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12705912790 is a deficient number, since it is larger than the sum of its proper divisors (10699722794).

12705912790 is a wasteful number, since it uses less digits than its factorization.

12705912790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56052.

The product of its (nonzero) digits is 79380, while the sum is 43.

The spelling of 12705912790 in words is "twelve billion, seven hundred five million, nine hundred twelve thousand, seven hundred ninety".