209932057376 has 48 divisors (see below), whose sum is σ = 420990242400. Its totient is φ = 103019670528.

The previous prime is 209932057343. The next prime is 209932057397. The reversal of 209932057376 is 673750239902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078856 + ... + 1258488.

It is an arithmetic number, because the mean of its divisors is an integer number (8770630050).

Almost surely, 2^209932057376 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 209932057376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210495121200).

209932057376 is an abundant number, since it is smaller than the sum of its proper divisors (211058185024).

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

209932057376 is a wasteful number, since it uses less digits than its factorization.

209932057376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180321 (or 180313 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 53.

The spelling of 209932057376 in words is "two hundred nine billion, nine hundred thirty-two million, fifty-seven thousand, three hundred seventy-six".