19492250019 has 8 divisors (see below), whose sum is σ = 28352363712. Its totient is φ = 11813484840.

The previous prime is 19492250003. The next prime is 19492250033. The reversal of 19492250019 is 91005229491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19492250019 - 2⁴ = 19492250003 is a prime.

It is a super-2 number, since 2×19492250019² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19492250069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295337089 + ... + 295337154.

It is an arithmetic number, because the mean of its divisors is an integer number (3544045464).

Almost surely, 2^19492250019 is an apocalyptic number.

19492250019 is a deficient number, since it is larger than the sum of its proper divisors (8860113693).

19492250019 is a wasteful number, since it uses less digits than its factorization.

19492250019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590674257.

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 19492250019 in words is "nineteen billion, four hundred ninety-two million, two hundred fifty thousand, nineteen".