19049513525 has 48 divisors (see below), whose sum is σ = 28444786560. Its totient is φ = 12362803200.

The previous prime is 19049513507. The next prime is 19049513573. The reversal of 19049513525 is 52531594091.

It is not a de Polignac number, because 19049513525 - 2¹² = 19049509429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4390157 + ... + 4394493.

It is an arithmetic number, because the mean of its divisors is an integer number (592599720).

Almost surely, 2^19049513525 is an apocalyptic number.

It is an amenable number.

19049513525 is a deficient number, since it is larger than the sum of its proper divisors (9395273035).

19049513525 is a wasteful number, since it uses less digits than its factorization.

19049513525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694 (or 5689 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 44.

The spelling of 19049513525 in words is "nineteen billion, forty-nine million, five hundred thirteen thousand, five hundred twenty-five".