19004863452 has 12 divisors (see below), whose sum is σ = 44344681416. Its totient is φ = 6334954480.

The previous prime is 19004863439. The next prime is 19004863457. The reversal of 19004863452 is 25436840091.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×19004863452² (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 (19004863457) 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 3 ways as a sum of consecutive naturals, for example, 791869299 + ... + 791869322.

It is an arithmetic number, because the mean of its divisors is an integer number (3695390118).

Almost surely, 2^19004863452 is an apocalyptic number.

19004863452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19004863452 is an abundant number, since it is smaller than the sum of its proper divisors (25339817964).

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

19004863452 is a wasteful number, since it uses less digits than its factorization.

19004863452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583738628 (or 1583738626 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

It can be divided in two parts, 19004 and 863452, that added together give a triangular number (882456 = T₁₃₂₈).

The spelling of 19004863452 in words is "nineteen billion, four million, eight hundred sixty-three thousand, four hundred fifty-two".