12401899280 has 40 divisors (see below), whose sum is σ = 28840421952. Its totient is φ = 4959726464.

The previous prime is 12401899231. The next prime is 12401899303. The reversal of 12401899280 is 8299810421.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456149 + ... + 482571.

Almost surely, 2^12401899280 is an apocalyptic number.

12401899280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12401899280 is an abundant number, since it is smaller than the sum of its proper divisors (16438522672).

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

12401899280 is a wasteful number, since it uses less digits than its factorization.

12401899280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32303 (or 32297 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 12401899280 in words is "twelve billion, four hundred one million, eight hundred ninety-nine thousand, two hundred eighty".