172375793647 has 2 divisors, whose sum is σ = 172375793648. Its totient is φ = 172375793646.

The previous prime is 172375793633. The next prime is 172375793657. The reversal of 172375793647 is 746397573271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172375793647 - 2⁷ = 172375793519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172375793617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86187896823 + 86187896824.

It is an arithmetic number, because the mean of its divisors is an integer number (86187896824).

Almost surely, 2^172375793647 is an apocalyptic number.

172375793647 is a deficient number, since it is larger than the sum of its proper divisors (1).

172375793647 is an equidigital number, since it uses as much as digits as its factorization.

172375793647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46675440, while the sum is 61.

The spelling of 172375793647 in words is "one hundred seventy-two billion, three hundred seventy-five million, seven hundred ninety-three thousand, six hundred forty-seven".