30945197147047 has 4 divisors (see below), whose sum is σ = 30945783760776. Its totient is φ = 30944610533320.

The previous prime is 30945197147003. The next prime is 30945197147063. The reversal of 30945197147047 is 74074179154903.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30945197147047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30945197177047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293227729 + ... + 293333242.

It is an arithmetic number, because the mean of its divisors is an integer number (7736445940194).

Almost surely, 2^{30945197147047} is an apocalyptic number.

30945197147047 is a deficient number, since it is larger than the sum of its proper divisors (586613729).

30945197147047 is an equidigital number, since it uses as much as digits as its factorization.

30945197147047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586613728.

The product of its (nonzero) digits is 26671680, while the sum is 61.

The spelling of 30945197147047 in words is "thirty trillion, nine hundred forty-five billion, one hundred ninety-seven million, one hundred forty-seven thousand, forty-seven".