30667531138 has 8 divisors (see below), whose sum is σ = 47485209600. Its totient is φ = 14839127940.

The previous prime is 30667531127. The next prime is 30667531151. The reversal of 30667531138 is 83113576603.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30667531138² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30667531094 and 30667531103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247318738 + ... + 247318861.

It is an arithmetic number, because the mean of its divisors is an integer number (5935651200).

Almost surely, 2^30667531138 is an apocalyptic number.

30667531138 is a deficient number, since it is larger than the sum of its proper divisors (16817678462).

30667531138 is a wasteful number, since it uses less digits than its factorization.

30667531138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494637632.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 30667531138 in words is "thirty billion, six hundred sixty-seven million, five hundred thirty-one thousand, one hundred thirty-eight".