19802204952 has 32 divisors (see below), whose sum is σ = 49968187200. Its totient is φ = 6539045024.

The previous prime is 19802204827. The next prime is 19802204953. The reversal of 19802204952 is 25940220891.

It is a happy number.

It is a super-2 number, since 2×19802204952² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19802204953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3853002 + ... + 3858137.

It is an arithmetic number, because the mean of its divisors is an integer number (1561505850).

Almost surely, 2^19802204952 is an apocalyptic number.

19802204952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19802204952 is an abundant number, since it is smaller than the sum of its proper divisors (30165982248).

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

19802204952 is a wasteful number, since it uses less digits than its factorization.

19802204952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7711255 (or 7711251 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 19802204952 in words is "nineteen billion, eight hundred two million, two hundred four thousand, nine hundred fifty-two".