208506682380 has 48 divisors (see below), whose sum is σ = 599597601120. Its totient is φ = 54099030528.

The previous prime is 208506682357. The next prime is 208506682409. The reversal of 208506682380 is 83286605802.

It is a super-2 number, since 2×208506682380² (a number of 23 digits) contains 22 as substring.

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, 46958745 + ... + 46963184.

It is an arithmetic number, because the mean of its divisors is an integer number (12491616690).

Almost surely, 2^208506682380 is an apocalyptic number.

208506682380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208506682380 is an abundant number, since it is smaller than the sum of its proper divisors (391090918740).

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

208506682380 is a wasteful number, since it uses less digits than its factorization.

208506682380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93921978 (or 93921976 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 208506682380 in words is "two hundred eight billion, five hundred six million, six hundred eighty-two thousand, three hundred eighty".