30454402068 has 18 divisors (see below), whose sum is σ = 76981960874. Its totient is φ = 10151467344.

The previous prime is 30454402057. The next prime is 30454402091. The reversal of 30454402068 is 86020445403.

30454402068 is a `hidden beast` number, since 3 + 0 + 4 + 5 + 440 + 206 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23074217604 + 7380184464 = 151902^2 + 85908^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 845955613 = 30454402068 / (3 + 0 + 4 + 5 + 4 + 4 + 0 + 2 + 0 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422977771 + ... + 422977842.

Almost surely, 2^30454402068 is an apocalyptic number.

It is an amenable number.

30454402068 is an abundant number, since it is smaller than the sum of its proper divisors (46527558806).

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

30454402068 is a wasteful number, since it uses less digits than its factorization.

30454402068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845955623 (or 845955618 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 30454402068 in words is "thirty billion, four hundred fifty-four million, four hundred two thousand, sixty-eight".