19407168090 has 96 divisors (see below), whose sum is σ = 51580488960. Its totient is φ = 5060391552.

The previous prime is 19407168071. The next prime is 19407168101. The reversal of 19407168090 is 9086170491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8403856 + ... + 8406164.

It is an arithmetic number, because the mean of its divisors is an integer number (537296760).

Almost surely, 2^19407168090 is an apocalyptic number.

19407168090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19407168090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25790244480).

19407168090 is an abundant number, since it is smaller than the sum of its proper divisors (32173320870).

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

19407168090 is a wasteful number, since it uses less digits than its factorization.

19407168090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356 (or 4353 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 19407168090 in words is "nineteen billion, four hundred seven million, one hundred sixty-eight thousand, ninety".