19045883997 has 16 divisors (see below), whose sum is σ = 32246999680. Its totient is φ = 10883362176.

The previous prime is 19045883963. The next prime is 19045884007. The reversal of 19045883997 is 79938854091.

19045883997 is a `hidden beast` number, since 1 + 90 + 458 + 8 + 3 + 9 + 97 = 666.

It is not a de Polignac number, because 19045883997 - 2¹² = 19045879901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19045883897) by changing a digit.

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, 50385748 + ... + 50386125.

It is an arithmetic number, because the mean of its divisors is an integer number (2015437480).

Almost surely, 2^19045883997 is an apocalyptic number.

It is an amenable number.

19045883997 is a deficient number, since it is larger than the sum of its proper divisors (13201115683).

19045883997 is a wasteful number, since it uses less digits than its factorization.

19045883997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100771889 (or 100771883 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 19045883997 in words is "nineteen billion, forty-five million, eight hundred eighty-three thousand, nine hundred ninety-seven".