306906900621 has 8 divisors (see below), whose sum is σ = 409225407360. Its totient is φ = 204596497152.

The previous prime is 306906900607. The next prime is 306906900673. The reversal of 306906900621 is 126009609603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 306906900621 - 2¹⁰ = 306906899597 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306906900691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1936885 + ... + 2089338.

It is an arithmetic number, because the mean of its divisors is an integer number (51153175920).

Almost surely, 2^306906900621 is an apocalyptic number.

It is an amenable number.

306906900621 is a deficient number, since it is larger than the sum of its proper divisors (102318506739).

306906900621 is a wasteful number, since it uses less digits than its factorization.

306906900621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051635.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 306906900621 in words is "three hundred six billion, nine hundred six million, nine hundred thousand, six hundred twenty-one".