4172345497787 has 2 divisors, whose sum is σ = 4172345497788. Its totient is φ = 4172345497786.

The previous prime is 4172345497753. The next prime is 4172345497849. The reversal of 4172345497787 is 7877945432714.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4172345497787 - 2³⁶ = 4103626021051 is a prime.

It is not a weakly prime, because it can be changed into another prime (4172345497087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086172748893 + 2086172748894.

It is an arithmetic number, because the mean of its divisors is an integer number (2086172748894).

Almost surely, 2^{4172345497787} is an apocalyptic number.

4172345497787 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172345497787 is an equidigital number, since it uses as much as digits as its factorization.

4172345497787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331914240, while the sum is 68.

The spelling of 4172345497787 in words is "four trillion, one hundred seventy-two billion, three hundred forty-five million, four hundred ninety-seven thousand, seven hundred eighty-seven".