306900201893 has 4 divisors (see below), whose sum is σ = 306902754828. Its totient is φ = 306897648960.

The previous prime is 306900201889. The next prime is 306900201899. The reversal of 306900201893 is 398102009603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 171580693729 + 135319508164 = 414223^2 + 367858^2 .

It is a cyclic number.

It is not a de Polignac number, because 306900201893 - 2² = 306900201889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 306900201893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306900201899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086746 + ... + 1339707.

It is an arithmetic number, because the mean of its divisors is an integer number (76725688707).

Almost surely, 2^306900201893 is an apocalyptic number.

It is an amenable number.

306900201893 is a deficient number, since it is larger than the sum of its proper divisors (2552935).

306900201893 is a wasteful number, since it uses less digits than its factorization.

306900201893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552934.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 306900201893 in words is "three hundred six billion, nine hundred million, two hundred one thousand, eight hundred ninety-three".