30793021386 has 16 divisors (see below), whose sum is σ = 61805213568. Its totient is φ = 10227812000.

The previous prime is 30793021381. The next prime is 30793021387. The reversal of 30793021386 is 68312039703.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30793021381) 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, 9130290 + ... + 9133661.

It is an arithmetic number, because the mean of its divisors is an integer number (3862825848).

Almost surely, 2^30793021386 is an apocalyptic number.

30793021386 is an abundant number, since it is smaller than the sum of its proper divisors (31012192182).

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

30793021386 is a wasteful number, since it uses less digits than its factorization.

30793021386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18264237.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 30793021386 in words is "thirty billion, seven hundred ninety-three million, twenty-one thousand, three hundred eighty-six".