19151084232 has 256 divisors, whose sum is σ = 62318592000. Its totient is φ = 5336326656.

The previous prime is 19151084207. The next prime is 19151084233. The reversal of 19151084232 is 23248015191.

It is a super-2 number, since 2×19151084232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (19151084233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12220713 + ... + 12222279.

It is an arithmetic number, because the mean of its divisors is an integer number (243432000).

Almost surely, 2^19151084232 is an apocalyptic number.

19151084232 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 19151084232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31159296000).

19151084232 is an abundant number, since it is smaller than the sum of its proper divisors (43167507768).

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

19151084232 is a wasteful number, since it uses less digits than its factorization.

19151084232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 19151084232 in words is "nineteen billion, one hundred fifty-one million, eighty-four thousand, two hundred thirty-two".