19004820920 has 16 divisors (see below), whose sum is σ = 42760847160. Its totient is φ = 7601928352.

The previous prime is 19004820911. The next prime is 19004820929. The reversal of 19004820920 is 2902840091.

It is an interprime number because it is at equal distance from previous prime (19004820911) and next prime (19004820929).

It is a super-2 number, since 2×19004820920² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19004820929) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 237560222 + ... + 237560301.

Almost surely, 2^19004820920 is an apocalyptic number.

19004820920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19004820920 is an abundant number, since it is smaller than the sum of its proper divisors (23756026240).

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

19004820920 is a wasteful number, since it uses less digits than its factorization.

19004820920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475120534 (or 475120530 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 19004820920 in words is "nineteen billion, four million, eight hundred twenty thousand, nine hundred twenty".