201868074690 has 32 divisors (see below), whose sum is σ = 509982505920. Its totient is φ = 50998250304.

The previous prime is 201868074623. The next prime is 201868074721. The reversal of 201868074690 is 96470868102.

201868074690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201868074690² (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, 177076689 + ... + 177077828.

It is an arithmetic number, because the mean of its divisors is an integer number (15936953310).

Almost surely, 2^201868074690 is an apocalyptic number.

201868074690 is an abundant number, since it is smaller than the sum of its proper divisors (308114431230).

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

201868074690 is a wasteful number, since it uses less digits than its factorization.

201868074690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354154546.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 201868074690 in words is "two hundred one billion, eight hundred sixty-eight million, seventy-four thousand, six hundred ninety".