12845461900 has 36 divisors (see below), whose sum is σ = 28467740448. Its totient is φ = 5028859840.

The previous prime is 12845461897. The next prime is 12845461921. The reversal of 12845461900 is 916454821.

It is a super-2 number, since 2×12845461900² (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 11 ways as a sum of consecutive naturals, for example, 1361839 + ... + 1371238.

It is an arithmetic number, because the mean of its divisors is an integer number (790770568).

Almost surely, 2^12845461900 is an apocalyptic number.

12845461900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12845461900 is an abundant number, since it is smaller than the sum of its proper divisors (15622278548).

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

12845461900 is a wasteful number, since it uses less digits than its factorization.

12845461900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733138 (or 2733131 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 12845461900 in words is "twelve billion, eight hundred forty-five million, four hundred sixty-one thousand, nine hundred".