306446021863 has 24 divisors (see below), whose sum is σ = 325137456000. Its totient is φ = 288747948720.

The previous prime is 306446021839. The next prime is 306446021879. The reversal of 306446021863 is 368120644603.

It is not a de Polignac number, because 306446021863 - 2⁹ = 306446021351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306446021363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56298220 + ... + 56303662.

It is an arithmetic number, because the mean of its divisors is an integer number (13547394000).

Almost surely, 2^306446021863 is an apocalyptic number.

306446021863 is a deficient number, since it is larger than the sum of its proper divisors (18691434137).

306446021863 is a wasteful number, since it uses less digits than its factorization.

306446021863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059 (or 7036 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 306446021863 in words is "three hundred six billion, four hundred forty-six million, twenty-one thousand, eight hundred sixty-three".