208945323730 has 32 divisors (see below), whose sum is σ = 441853610688. Its totient is φ = 70135492800.

The previous prime is 208945323721. The next prime is 208945323731. The reversal of 208945323730 is 37323549802.

It is a super-2 number, since 2×208945323730² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208945323731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73056376 + ... + 73059235.

It is an arithmetic number, because the mean of its divisors is an integer number (13807925334).

Almost surely, 2^208945323730 is an apocalyptic number.

208945323730 is an abundant number, since it is smaller than the sum of its proper divisors (232908286958).

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

208945323730 is a wasteful number, since it uses less digits than its factorization.

208945323730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146115642.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 208945323730 in words is "two hundred eight billion, nine hundred forty-five million, three hundred twenty-three thousand, seven hundred thirty".