12905074170 has 128 divisors (see below), whose sum is σ = 38355897600. Its totient is φ = 3068430336.

The previous prime is 12905074159. The next prime is 12905074183. The reversal of 12905074170 is 7147050921.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13222 + ... + 161198.

It is an arithmetic number, because the mean of its divisors is an integer number (299655450).

Almost surely, 2^12905074170 is an apocalyptic number.

12905074170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12905074170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19177948800).

12905074170 is an abundant number, since it is smaller than the sum of its proper divisors (25450823430).

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

12905074170 is a wasteful number, since it uses less digits than its factorization.

12905074170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148029 (or 148023 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 12905074170 in words is "twelve billion, nine hundred five million, seventy-four thousand, one hundred seventy".