209483388432 has 100 divisors (see below), whose sum is σ = 607097024380. Its totient is φ = 69736660992.

The previous prime is 209483388427. The next prime is 209483388461. The reversal of 209483388432 is 234883384902.

209483388432 is a `hidden beast` number, since 20 + 9 + 483 + 38 + 84 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55618618896 + 153864769536 = 235836^2 + 392256^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 891528 + ... + 1101720.

Almost surely, 2^209483388432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 209483388432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303548512190).

209483388432 is an abundant number, since it is smaller than the sum of its proper divisors (397613635948).

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

209483388432 is a wasteful number, since it uses less digits than its factorization.

209483388432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210982 (or 210967 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 209483388432 in words is "two hundred nine billion, four hundred eighty-three million, three hundred eighty-eight thousand, four hundred thirty-two".