19947884202 has 32 divisors (see below), whose sum is σ = 44335200960. Its totient is φ = 6648309360.

The previous prime is 19947884189. The next prime is 19947884207. The reversal of 19947884202 is 20248874991.

19947884202 is a `hidden beast` number, since 1 + 99 + 478 + 84 + 2 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (19947884207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402252 + ... + 449112.

It is an arithmetic number, because the mean of its divisors is an integer number (1385475030).

Almost surely, 2^19947884202 is an apocalyptic number.

19947884202 is an abundant number, since it is smaller than the sum of its proper divisors (24387316758).

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

19947884202 is a wasteful number, since it uses less digits than its factorization.

19947884202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54755 (or 54749 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 19947884202 in words is "nineteen billion, nine hundred forty-seven million, eight hundred eighty-four thousand, two hundred two".