30561904390000 has 50 divisors (see below), whose sum is σ = 73993426742840. Its totient is φ = 12224761752000.

The previous prime is 30561904389953. The next prime is 30561904390007. The reversal of 30561904390000 is 9340916503.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30561904390007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1528085220 + ... + 1528105219.

Almost surely, 2^{30561904390000} is an apocalyptic number.

It is an amenable number.

30561904390000 is an abundant number, since it is smaller than the sum of its proper divisors (43431522352840).

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

30561904390000 is an equidigital number, since it uses as much as digits as its factorization.

30561904390000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056190467 (or 3056190446 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 30561904390000 in words is "thirty trillion, five hundred sixty-one billion, nine hundred four million, three hundred ninety thousand".