19025269949 has 16 divisors (see below), whose sum is σ = 21972297600. Its totient is φ = 16135930944.

The previous prime is 19025269897. The next prime is 19025269957. The reversal of 19025269949 is 94996252091.

It is not a de Polignac number, because 19025269949 - 2²⁴ = 19008492733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19025269894 and 19025269903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19025469949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561122 + ... + 594060.

It is an arithmetic number, because the mean of its divisors is an integer number (1373268600).

Almost surely, 2^19025269949 is an apocalyptic number.

It is an amenable number.

19025269949 is a deficient number, since it is larger than the sum of its proper divisors (2947027651).

19025269949 is a wasteful number, since it uses less digits than its factorization.

19025269949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33812.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 19025269949 in words is "nineteen billion, twenty-five million, two hundred sixty-nine thousand, nine hundred forty-nine".