30855105038 has 16 divisors (see below), whose sum is σ = 49113509760. Its totient is φ = 14506673016.

The previous prime is 30855105037. The next prime is 30855105053. The reversal of 30855105038 is 83050155803.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30855104992 and 30855105010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30855105037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5681720 + ... + 5687147.

It is an arithmetic number, because the mean of its divisors is an integer number (3069594360).

Almost surely, 2^30855105038 is an apocalyptic number.

30855105038 is a deficient number, since it is larger than the sum of its proper divisors (18258404722).

30855105038 is a wasteful number, since it uses less digits than its factorization.

30855105038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11368951.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 30855105038 in words is "thirty billion, eight hundred fifty-five million, one hundred five thousand, thirty-eight".