19048145788 has 24 divisors (see below), whose sum is σ = 40337250912. Its totient is φ = 7683285504.

The previous prime is 19048145729. The next prime is 19048145807. The reversal of 19048145788 is 88754184091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20008081 + ... + 20009032.

It is an arithmetic number, because the mean of its divisors is an integer number (1680718788).

Almost surely, 2^19048145788 is an apocalyptic number.

It is an amenable number.

19048145788 is an abundant number, since it is smaller than the sum of its proper divisors (21289105124).

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

19048145788 is a wasteful number, since it uses less digits than its factorization.

19048145788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40017141 (or 40017139 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 55.

It can be divided in two parts, 19048 and 145788, that added together give a square (164836 = 406²).

The spelling of 19048145788 in words is "nineteen billion, forty-eight million, one hundred forty-five thousand, seven hundred eighty-eight".