12905827500 has 60 divisors (see below), whose sum is σ = 37629973304. Its totient is φ = 3441552000.

The previous prime is 12905827499. The next prime is 12905827541. The reversal of 12905827500 is 572850921.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 852889 + ... + 867888.

Almost surely, 2^12905827500 is an apocalyptic number.

12905827500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12905827500 is an abundant number, since it is smaller than the sum of its proper divisors (24724145804).

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

12905827500 is a wasteful number, since it uses less digits than its factorization.

12905827500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720804 (or 1720787 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 12905827500 in words is "twelve billion, nine hundred five million, eight hundred twenty-seven thousand, five hundred".