206912327380 has 48 divisors (see below), whose sum is σ = 474049517760. Its totient is φ = 75235737600.

The previous prime is 206912327317. The next prime is 206912327411. The reversal of 206912327380 is 83723219602.

It is a super-2 number, since 2×206912327380² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 5048611 + ... + 5089429.

It is an arithmetic number, because the mean of its divisors is an integer number (9876031620).

Almost surely, 2^206912327380 is an apocalyptic number.

206912327380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206912327380 is an abundant number, since it is smaller than the sum of its proper divisors (267137190380).

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

206912327380 is a wasteful number, since it uses less digits than its factorization.

206912327380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63880 (or 63878 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 206912327380 in words is "two hundred six billion, nine hundred twelve million, three hundred twenty-seven thousand, three hundred eighty".