172412524357 has 2 divisors, whose sum is σ = 172412524358. Its totient is φ = 172412524356.

The previous prime is 172412524313. The next prime is 172412524381. The reversal of 172412524357 is 753425214271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115470156481 + 56942367876 = 339809^2 + 238626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172412524357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172412524387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86206262178 + 86206262179.

It is an arithmetic number, because the mean of its divisors is an integer number (86206262179).

Almost surely, 2^172412524357 is an apocalyptic number.

It is an amenable number.

172412524357 is a deficient number, since it is larger than the sum of its proper divisors (1).

172412524357 is an equidigital number, since it uses as much as digits as its factorization.

172412524357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 43.

The spelling of 172412524357 in words is "one hundred seventy-two billion, four hundred twelve million, five hundred twenty-four thousand, three hundred fifty-seven".