19259240019 has 16 divisors (see below), whose sum is σ = 25821427104. Its totient is φ = 12768422400.

The previous prime is 19259239997. The next prime is 19259240027. The reversal of 19259240019 is 91004295291.

It is not a de Polignac number, because 19259240019 - 2⁷ = 19259239891 is a prime.

It is a super-2 number, since 2×19259240019² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19259240059) 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, 511789 + ... + 548129.

It is an arithmetic number, because the mean of its divisors is an integer number (1613839194).

Almost surely, 2^19259240019 is an apocalyptic number.

19259240019 is a deficient number, since it is larger than the sum of its proper divisors (6562187085).

19259240019 is a wasteful number, since it uses less digits than its factorization.

19259240019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37318.

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

The spelling of 19259240019 in words is "nineteen billion, two hundred fifty-nine million, two hundred forty thousand, nineteen".