30786154168 has 32 divisors (see below), whose sum is σ = 71967634560. Its totient is φ = 11994605280.

The previous prime is 30786154163. The next prime is 30786154193. The reversal of 30786154168 is 86145168703.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30786154163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24988146 + ... + 24989377.

It is an arithmetic number, because the mean of its divisors is an integer number (2248988580).

Almost surely, 2^30786154168 is an apocalyptic number.

It is an amenable number.

30786154168 is an abundant number, since it is smaller than the sum of its proper divisors (41181480392).

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

30786154168 is a wasteful number, since it uses less digits than its factorization.

30786154168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49977547 (or 49977543 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 30786154168 in words is "thirty billion, seven hundred eighty-six million, one hundred fifty-four thousand, one hundred sixty-eight".