30481493138 has 8 divisors (see below), whose sum is σ = 45768380160. Its totient is φ = 15225366420.

The previous prime is 30481493117. The next prime is 30481493177. The reversal of 30481493138 is 83139418403.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7687598 + ... + 7691561.

It is an arithmetic number, because the mean of its divisors is an integer number (5721047520).

Almost surely, 2^30481493138 is an apocalyptic number.

30481493138 is a deficient number, since it is larger than the sum of its proper divisors (15286887022).

30481493138 is a wasteful number, since it uses less digits than its factorization.

30481493138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15380152.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 30481493138 in words is "thirty billion, four hundred eighty-one million, four hundred ninety-three thousand, one hundred thirty-eight".