30818078109 has 48 divisors (see below), whose sum is σ = 57671286400. Its totient is φ = 15400119168.

The previous prime is 30818078107. The next prime is 30818078119. The reversal of 30818078109 is 90187081803.

It is not a de Polignac number, because 30818078109 - 2¹ = 30818078107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30818078107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 974674 + ... + 1005795.

Almost surely, 2^30818078109 is an apocalyptic number.

30818078109 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30818078109 is a deficient number, since it is larger than the sum of its proper divisors (26853208291).

30818078109 is a wasteful number, since it uses less digits than its factorization.

30818078109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980514 (or 1980511 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 30818078109 in words is "thirty billion, eight hundred eighteen million, seventy-eight thousand, one hundred nine".