1947117967023 has 4 divisors (see below), whose sum is σ = 2596157289368. Its totient is φ = 1298078644680.

The previous prime is 1947117967021. The next prime is 1947117967033. The reversal of 1947117967023 is 3207697117491.

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

It is not a de Polignac number, because 1947117967023 - 2¹ = 1947117967021 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 (1947117967021) 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, 324519661168 + ... + 324519661173.

It is an arithmetic number, because the mean of its divisors is an integer number (649039322342).

Almost surely, 2^{1947117967023} is an apocalyptic number.

1947117967023 is a deficient number, since it is larger than the sum of its proper divisors (649039322345).

1947117967023 is an equidigital number, since it uses as much as digits as its factorization.

1947117967023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649039322344.

The product of its (nonzero) digits is 4000752, while the sum is 57.

The spelling of 1947117967023 in words is "one trillion, nine hundred forty-seven billion, one hundred seventeen million, nine hundred sixty-seven thousand, twenty-three".