30561334078 has 16 divisors (see below), whose sum is σ = 52951189104. Its totient is φ = 13074367360.

The previous prime is 30561334039. The next prime is 30561334079. The reversal of 30561334078 is 87043316503.

It is a super-2 number, since 2×30561334078² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30561334078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30561334079) 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, 40857025 + ... + 40857772.

It is an arithmetic number, because the mean of its divisors is an integer number (3309449319).

Almost surely, 2^30561334078 is an apocalyptic number.

30561334078 is a deficient number, since it is larger than the sum of its proper divisors (22389855026).

30561334078 is a wasteful number, since it uses less digits than its factorization.

30561334078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81714827.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 30561334078 in words is "thirty billion, five hundred sixty-one million, three hundred thirty-four thousand, seventy-eight".