19006299920 has 40 divisors (see below), whose sum is σ = 45129861504. Its totient is φ = 7440762752.

The previous prime is 19006299913. The next prime is 19006299959. The reversal of 19006299920 is 2999260091.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×19006299920² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2523674 + ... + 2531193.

Almost surely, 2^19006299920 is an apocalyptic number.

19006299920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19006299920 is an abundant number, since it is smaller than the sum of its proper divisors (26123561584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19006299920 is a wasteful number, since it uses less digits than its factorization.

19006299920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054927 (or 5054921 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 47.

It can be divided in two parts, 190062 and 99920, that added together give a palindrome (289982).

The spelling of 19006299920 in words is "nineteen billion, six million, two hundred ninety-nine thousand, nine hundred twenty".