19213867245 has 16 divisors (see below), whose sum is σ = 32550552000. Its totient is φ = 9644607744.

The previous prime is 19213867243. The next prime is 19213867297. The reversal of 19213867245 is 54276831291.

It is not a de Polignac number, because 19213867245 - 2¹ = 19213867243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19213867194 and 19213867203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19213867243) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37673995 + ... + 37674504.

It is an arithmetic number, because the mean of its divisors is an integer number (2034409500).

Almost surely, 2^19213867245 is an apocalyptic number.

19213867245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19213867245 is a deficient number, since it is larger than the sum of its proper divisors (13336684755).

19213867245 is a wasteful number, since it uses less digits than its factorization.

19213867245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75348524.

The product of its digits is 725760, while the sum is 48.

The spelling of 19213867245 in words is "nineteen billion, two hundred thirteen million, eight hundred sixty-seven thousand, two hundred forty-five".