30506621831038 has 32 divisors (see below), whose sum is σ = 46171822694400. Its totient is φ = 15116644494816.

The previous prime is 30506621831029. The next prime is 30506621831071. The reversal of 30506621831038 is 83013812660503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213660720 + ... + 213803452.

It is an arithmetic number, because the mean of its divisors is an integer number (1442869459200).

Almost surely, 2^{30506621831038} is an apocalyptic number.

30506621831038 is a deficient number, since it is larger than the sum of its proper divisors (15665200863362).

30506621831038 is a wasteful number, since it uses less digits than its factorization.

30506621831038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144936.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 30506621831038 in words is "thirty trillion, five hundred six billion, six hundred twenty-one million, eight hundred thirty-one thousand, thirty-eight".