30305632874538 has 24 divisors (see below), whose sum is σ = 70506982606752. Its totient is φ = 8658752249784.

The previous prime is 30305632874533. The next prime is 30305632874557. The reversal of 30305632874538 is 83547823650303.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30305632874533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51540191670 + ... + 51540192257.

It is an arithmetic number, because the mean of its divisors is an integer number (2937790941948).

Almost surely, 2^{30305632874538} is an apocalyptic number.

30305632874538 is an abundant number, since it is smaller than the sum of its proper divisors (40201349732214).

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

30305632874538 is a wasteful number, since it uses less digits than its factorization.

30305632874538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103080383946 (or 103080383939 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 57.

The spelling of 30305632874538 in words is "thirty trillion, three hundred five billion, six hundred thirty-two million, eight hundred seventy-four thousand, five hundred thirty-eight".