19304779023 has 6 divisors (see below), whose sum is σ = 27884680824. Its totient is φ = 12869852676.

The previous prime is 19304779009. The next prime is 19304779027. The reversal of 19304779023 is 32097740391.

19304779023 is a `hidden beast` number, since 1 + 93 + 0 + 477 + 90 + 2 + 3 = 666.

It is not a de Polignac number, because 19304779023 - 2¹⁷ = 19304647951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19304779023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19304779027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1072487715 + ... + 1072487732.

It is an arithmetic number, because the mean of its divisors is an integer number (4647446804).

Almost surely, 2^19304779023 is an apocalyptic number.

19304779023 is a deficient number, since it is larger than the sum of its proper divisors (8579901801).

19304779023 is a wasteful number, since it uses less digits than its factorization.

19304779023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144975453 (or 2144975450 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 19304779023 in words is "nineteen billion, three hundred four million, seven hundred seventy-nine thousand, twenty-three".