19444795929 has 40 divisors (see below), whose sum is σ = 31510127880. Its totient is φ = 11878596864.

The previous prime is 19444795927. The next prime is 19444795969. The reversal of 19444795929 is 92959744491.

19444795929 is a `hidden beast` number, since 1 + 94 + 4 + 479 + 59 + 29 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6322635225 + 13122160704 = 79515^2 + 114552^2 .

It is not a de Polignac number, because 19444795929 - 2¹ = 19444795927 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19444795921) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 76867 + ... + 211655.

It is an arithmetic number, because the mean of its divisors is an integer number (787753197).

Almost surely, 2^19444795929 is an apocalyptic number.

It is an amenable number.

19444795929 is a deficient number, since it is larger than the sum of its proper divisors (12065331951).

19444795929 is a wasteful number, since it uses less digits than its factorization.

19444795929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134951 (or 134942 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The spelling of 19444795929 in words is "nineteen billion, four hundred forty-four million, seven hundred ninety-five thousand, nine hundred twenty-nine".