19444626732 has 12 divisors (see below), whose sum is σ = 45370795736. Its totient is φ = 6481542240.

The previous prime is 19444626709. The next prime is 19444626763. The reversal of 19444626732 is 23762644491.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810192769 + ... + 810192792.

Almost surely, 2^19444626732 is an apocalyptic number.

19444626732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19444626732 is an abundant number, since it is smaller than the sum of its proper divisors (25926169004).

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

19444626732 is a wasteful number, since it uses less digits than its factorization.

19444626732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620385568 (or 1620385566 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 48.

The spelling of 19444626732 in words is "nineteen billion, four hundred forty-four million, six hundred twenty-six thousand, seven hundred thirty-two".