19445800260 has 48 divisors (see below), whose sum is σ = 54454934016. Its totient is φ = 5184909312.

The previous prime is 19445800243. The next prime is 19445800289. The reversal of 19445800260 is 6200854491.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669357 + ... + 697803.

It is an arithmetic number, because the mean of its divisors is an integer number (1134477792).

Almost surely, 2^19445800260 is an apocalyptic number.

19445800260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19445800260 is an abundant number, since it is smaller than the sum of its proper divisors (35009133756).

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

19445800260 is a wasteful number, since it uses less digits than its factorization.

19445800260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39852 (or 39850 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 19445800260 in words is "nineteen billion, four hundred forty-five million, eight hundred thousand, two hundred sixty".