30193665426 has 48 divisors (see below), whose sum is σ = 68427253440. Its totient is φ = 9603934560.

The previous prime is 30193665409. The next prime is 30193665461. The reversal of 30193665426 is 62456639103.

30193665426 is a `hidden beast` number, since 30 + 19 + 3 + 66 + 542 + 6 = 666.

It is a super-2 number, since 2×30193665426² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86436 + ... + 260496.

It is an arithmetic number, because the mean of its divisors is an integer number (1425567780).

Almost surely, 2^30193665426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30193665426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34213626720).

30193665426 is an abundant number, since it is smaller than the sum of its proper divisors (38233588014).

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

30193665426 is a wasteful number, since it uses less digits than its factorization.

30193665426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174511 (or 174508 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 30193665426 in words is "thirty billion, one hundred ninety-three million, six hundred sixty-five thousand, four hundred twenty-six".