19248721734 has 32 divisors (see below), whose sum is σ = 42017117184. Its totient is φ = 5830181280.

The previous prime is 19248721721. The next prime is 19248721741. The reversal of 19248721734 is 43712784291.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73392 + ... + 209484.

It is an arithmetic number, because the mean of its divisors is an integer number (1313034912).

Almost surely, 2^19248721734 is an apocalyptic number.

19248721734 is an abundant number, since it is smaller than the sum of its proper divisors (22768395450).

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

19248721734 is a wasteful number, since it uses less digits than its factorization.

19248721734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138252.

The product of its digits is 677376, while the sum is 48.

The spelling of 19248721734 in words is "nineteen billion, two hundred forty-eight million, seven hundred twenty-one thousand, seven hundred thirty-four".