172202113747 has 2 divisors, whose sum is σ = 172202113748. Its totient is φ = 172202113746.

The previous prime is 172202113711. The next prime is 172202113757. The reversal of 172202113747 is 747311202271.

It is a strong prime.

It is an emirp because it is prime and its reverse (747311202271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172202113747 - 2¹⁵ = 172202080979 is a prime.

It is not a weakly prime, because it can be changed into another prime (172202113757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86101056873 + 86101056874.

It is an arithmetic number, because the mean of its divisors is an integer number (86101056874).

Almost surely, 2^172202113747 is an apocalyptic number.

172202113747 is a deficient number, since it is larger than the sum of its proper divisors (1).

172202113747 is an equidigital number, since it uses as much as digits as its factorization.

172202113747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 37.

The spelling of 172202113747 in words is "one hundred seventy-two billion, two hundred two million, one hundred thirteen thousand, seven hundred forty-seven".