207868630388 has 12 divisors (see below), whose sum is σ = 363793739652. Its totient is φ = 103927561920.

The previous prime is 207868630309. The next prime is 207868630423. The reversal of 207868630388 is 883036868702.

It can be written as a sum of positive squares in 2 ways, for example, as 83204556304 + 124664074084 = 288452^2 + 353078^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618745 + ... + 1742432.

It is an arithmetic number, because the mean of its divisors is an integer number (30316144971).

Almost surely, 2^207868630388 is an apocalyptic number.

It is an amenable number.

207868630388 is a deficient number, since it is larger than the sum of its proper divisors (155925109264).

207868630388 is a wasteful number, since it uses less digits than its factorization.

207868630388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376642 (or 3376640 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 59.

The spelling of 207868630388 in words is "two hundred seven billion, eight hundred sixty-eight million, six hundred thirty thousand, three hundred eighty-eight".