19020709144 has 32 divisors (see below), whose sum is σ = 36386555040. Its totient is φ = 9318816000.

The previous prime is 19020709087. The next prime is 19020709157. The reversal of 19020709144 is 44190702091.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 54244 + ... + 202444.

It is an arithmetic number, because the mean of its divisors is an integer number (1137079845).

Almost surely, 2^19020709144 is an apocalyptic number.

It is an amenable number.

19020709144 is a deficient number, since it is larger than the sum of its proper divisors (17365845896).

19020709144 is a wasteful number, since it uses less digits than its factorization.

19020709144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148531 (or 148527 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 19020709144 in words is "nineteen billion, twenty million, seven hundred nine thousand, one hundred forty-four".