30530243687856 has 720 divisors, whose sum is σ = 94851125139456. Its totient is φ = 8444646144000.

The previous prime is 30530243687819. The next prime is 30530243687863. The reversal of 30530243687856 is 65878634203503.

It is a super-3 number, since 3×30530243687856³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 30530243687856.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6952911421 + ... + 6952915811.

Almost surely, 2^{30530243687856} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30530243687856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47425562569728).

30530243687856 is an abundant number, since it is smaller than the sum of its proper divisors (64320881451600).

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

30530243687856 is a wasteful number, since it uses less digits than its factorization.

30530243687856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574 (or 4534 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 60.

The spelling of 30530243687856 in words is "thirty trillion, five hundred thirty billion, two hundred forty-three million, six hundred eighty-seven thousand, eight hundred fifty-six".