12400727100 has 72 divisors (see below), whose sum is σ = 35912753520. Its totient is φ = 3303790080.

The previous prime is 12400727089. The next prime is 12400727113. The reversal of 12400727100 is 172700421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314064 + ... + 351336.

Almost surely, 2^12400727100 is an apocalyptic number.

12400727100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12400727100 is an abundant number, since it is smaller than the sum of its proper divisors (23512026420).

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

12400727100 is a wasteful number, since it uses less digits than its factorization.

12400727100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38399 (or 38392 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The spelling of 12400727100 in words is "twelve billion, four hundred million, seven hundred twenty-seven thousand, one hundred".