19212300852 has 12 divisors (see below), whose sum is σ = 44828702016. Its totient is φ = 6404100280.

The previous prime is 19212300769. The next prime is 19212300893. The reversal of 19212300852 is 25800321291.

It is a happy number.

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

It is a super-2 number, since 2×19212300852² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800512524 + ... + 800512547.

It is an arithmetic number, because the mean of its divisors is an integer number (3735725168).

Almost surely, 2^19212300852 is an apocalyptic number.

19212300852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19212300852 is an abundant number, since it is smaller than the sum of its proper divisors (25616401164).

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

19212300852 is a wasteful number, since it uses less digits than its factorization.

19212300852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601025078 (or 1601025076 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 19212300852 in words is "nineteen billion, two hundred twelve million, three hundred thousand, eight hundred fifty-two".