12805953810 has 64 divisors (see below), whose sum is σ = 33723019008. Its totient is φ = 3092753664.

The previous prime is 12805953803. The next prime is 12805953821. The reversal of 12805953810 is 1835950821.

It is a super-2 number, since 2×12805953810² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289102 + ... + 330441.

It is an arithmetic number, because the mean of its divisors is an integer number (526922172).

Almost surely, 2^12805953810 is an apocalyptic number.

12805953810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12805953810 is an abundant number, since it is smaller than the sum of its proper divisors (20917065198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12805953810 is a wasteful number, since it uses less digits than its factorization.

12805953810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619619.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 12805953810 in words is "twelve billion, eight hundred five million, nine hundred fifty-three thousand, eight hundred ten".