209623004352 has 112 divisors (see below), whose sum is σ = 620686998400. Its totient is φ = 69371562240.

The previous prime is 209623004321. The next prime is 209623004377. The reversal of 209623004352 is 253400326902.

It is a happy number.

209623004352 is a `hidden beast` number, since 20 + 9 + 623 + 0 + 0 + 4 + 3 + 5 + 2 = 666.

It is a super-2 number, since 2×209623004352² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196174 + ... + 676557.

It is an arithmetic number, because the mean of its divisors is an integer number (5541848200).

Almost surely, 2^209623004352 is an apocalyptic number.

It is an amenable number.

209623004352 is an abundant number, since it is smaller than the sum of its proper divisors (411063994048).

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

209623004352 is a wasteful number, since it uses less digits than its factorization.

209623004352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872891 (or 872875 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 209623004352 in words is "two hundred nine billion, six hundred twenty-three million, four thousand, three hundred fifty-two".