19207999152 has 120 divisors (see below), whose sum is σ = 56661251920. Its totient is φ = 6297626880.

The previous prime is 19207999147. The next prime is 19207999157. The reversal of 19207999152 is 25199970291.

It is an interprime number because it is at equal distance from previous prime (19207999147) and next prime (19207999157).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (19207999157) 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 23 ways as a sum of consecutive naturals, for example, 196674 + ... + 277662.

Almost surely, 2^19207999152 is an apocalyptic number.

19207999152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19207999152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28330625960).

19207999152 is an abundant number, since it is smaller than the sum of its proper divisors (37453252768).

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

19207999152 is an equidigital number, since it uses as much as digits as its factorization.

19207999152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81073 (or 81055 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 54.

The spelling of 19207999152 in words is "nineteen billion, two hundred seven million, nine hundred ninety-nine thousand, one hundred fifty-two".