16947546523 has 2 divisors, whose sum is σ = 16947546524. Its totient is φ = 16947546522.

The previous prime is 16947546493. The next prime is 16947546589. The reversal of 16947546523 is 32564574961.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16947546523 is a prime.

It is not a weakly prime, because it can be changed into another prime (16947546593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8473773261 + 8473773262.

It is an arithmetic number, because the mean of its divisors is an integer number (8473773262).

Almost surely, 2^16947546523 is an apocalyptic number.

16947546523 is a deficient number, since it is larger than the sum of its proper divisors (1).

16947546523 is an equidigital number, since it uses as much as digits as its factorization.

16947546523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 52.

The spelling of 16947546523 in words is "sixteen billion, nine hundred forty-seven million, five hundred forty-six thousand, five hundred twenty-three".