19529542936 has 16 divisors (see below), whose sum is σ = 37799115840. Its totient is φ = 9449778720.

The previous prime is 19529542847. The next prime is 19529542937. The reversal of 19529542936 is 63924592591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19529542937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39373831 + ... + 39374326.

It is an arithmetic number, because the mean of its divisors is an integer number (2362444740).

Almost surely, 2^19529542936 is an apocalyptic number.

It is an amenable number.

19529542936 is a deficient number, since it is larger than the sum of its proper divisors (18269572904).

19529542936 is a wasteful number, since it uses less digits than its factorization.

19529542936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78748194 (or 78748190 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 55.

The spelling of 19529542936 in words is "nineteen billion, five hundred twenty-nine million, five hundred forty-two thousand, nine hundred thirty-six".