30129379138 has 8 divisors (see below), whose sum is σ = 47159028288. Its totient is φ = 14409703044.

The previous prime is 30129379127. The next prime is 30129379193. The reversal of 30129379138 is 83197392103.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 654986503 = 30129379138 / (3 + 0 + 1 + 2 + 9 + 3 + 7 + 9 + 1 + 3 + 8).

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, 327493206 + ... + 327493297.

It is an arithmetic number, because the mean of its divisors is an integer number (5894878536).

Almost surely, 2^30129379138 is an apocalyptic number.

30129379138 is a deficient number, since it is larger than the sum of its proper divisors (17029649150).

30129379138 is a wasteful number, since it uses less digits than its factorization.

30129379138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654986528.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 30129379138 in words is "thirty billion, one hundred twenty-nine million, three hundred seventy-nine thousand, one hundred thirty-eight".