30134807838 has 16 divisors (see below), whose sum is σ = 66966239760. Its totient is φ = 10044935928.

The previous prime is 30134807803. The next prime is 30134807891. The reversal of 30134807838 is 83870843103.

It is a junction number, because it is equal to n+sod(n) for n = 30134807793 and 30134807802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279025945 + ... + 279026052.

It is an arithmetic number, because the mean of its divisors is an integer number (4185389985).

Almost surely, 2^30134807838 is an apocalyptic number.

30134807838 is an abundant number, since it is smaller than the sum of its proper divisors (36831431922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30134807838 is a wasteful number, since it uses less digits than its factorization.

30134807838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558052008 (or 558052002 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 30134807838 in words is "thirty billion, one hundred thirty-four million, eight hundred seven thousand, eight hundred thirty-eight".