19429850313 has 12 divisors (see below), whose sum is σ = 28069537860. Its totient is φ = 12951295776.

The previous prime is 19429850311. The next prime is 19429850317. The reversal of 19429850313 is 31305892491.

It is a happy number.

19429850313 is a `hidden beast` number, since 1 + 9 + 42 + 98 + 503 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16458837264 + 2971013049 = 128292^2 + 54507^2 .

It is not a de Polignac number, because 19429850313 - 2¹ = 19429850311 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19429850311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96606 + ... + 219527.

It is an arithmetic number, because the mean of its divisors is an integer number (2339128155).

Almost surely, 2^19429850313 is an apocalyptic number.

It is an amenable number.

19429850313 is a deficient number, since it is larger than the sum of its proper divisors (8639687547).

19429850313 is a wasteful number, since it uses less digits than its factorization.

19429850313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322968 (or 322965 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 19429850313 in words is "nineteen billion, four hundred twenty-nine million, eight hundred fifty thousand, three hundred thirteen".