30561694464 has 72 divisors (see below), whose sum is σ = 92958503680. Its totient is φ = 8731911168.

The previous prime is 30561694463. The next prime is 30561694469. The reversal of 30561694464 is 46449616503.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (30561694463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2837044 + ... + 2847795.

Almost surely, 2^30561694464 is an apocalyptic number.

It is an amenable number.

30561694464 is an abundant number, since it is smaller than the sum of its proper divisors (62396809216).

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

30561694464 is an equidigital number, since it uses as much as digits as its factorization.

30561694464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684865 (or 5684851 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 30561694464 in words is "thirty billion, five hundred sixty-one million, six hundred ninety-four thousand, four hundred sixty-four".