19087590912 has 160 divisors (see below), whose sum is σ = 57645477120. Its totient is φ = 5563883520.

The previous prime is 19087590901. The next prime is 19087590919. The reversal of 19087590912 is 21909578091.

It is a super-2 number, since 2×19087590912² (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 (19087590919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354237 + ... + 404547.

It is an arithmetic number, because the mean of its divisors is an integer number (360284232).

Almost surely, 2^19087590912 is an apocalyptic number.

19087590912 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 19087590912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28822738560).

19087590912 is an abundant number, since it is smaller than the sum of its proper divisors (38557886208).

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

19087590912 is a wasteful number, since it uses less digits than its factorization.

19087590912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50364 (or 50348 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 51.

The spelling of 19087590912 in words is "nineteen billion, eighty-seven million, five hundred ninety thousand, nine hundred twelve".