201268842813 has 12 divisors (see below), whose sum is σ = 290726976540. Its totient is φ = 134176775616.

The previous prime is 201268842799. The next prime is 201268842839. The reversal of 201268842813 is 318248862102.

201268842813 is a `hidden beast` number, since 20 + 126 + 88 + 428 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17019289764 + 184249553049 = 130458^2 + 429243^2 .

It is not a de Polignac number, because 201268842813 - 2⁹ = 201268842301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201268842413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413593 + ... + 757361.

It is an arithmetic number, because the mean of its divisors is an integer number (24227248045).

Almost surely, 2^201268842813 is an apocalyptic number.

It is an amenable number.

201268842813 is a deficient number, since it is larger than the sum of its proper divisors (89458133727).

201268842813 is a wasteful number, since it uses less digits than its factorization.

201268842813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408828 (or 408825 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 201268842813 in words is "two hundred one billion, two hundred sixty-eight million, eight hundred forty-two thousand, eight hundred thirteen".