19421304370 has 16 divisors (see below), whose sum is σ = 37647451800. Its totient is φ = 7170943104.

The previous prime is 19421304349. The next prime is 19421304433. The reversal of 19421304370 is 7340312491.

It can be written as a sum of positive squares in 4 ways, for example, as 12983007249 + 6438297121 = 113943^2 + 80239^2 .

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, 74697195 + ... + 74697454.

Almost surely, 2^19421304370 is an apocalyptic number.

19421304370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19421304370 is a deficient number, since it is larger than the sum of its proper divisors (18226147430).

19421304370 is a wasteful number, since it uses less digits than its factorization.

19421304370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149394669.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 19421304370 in words is "nineteen billion, four hundred twenty-one million, three hundred four thousand, three hundred seventy".