8342175831557 has 2 divisors, whose sum is σ = 8342175831558. Its totient is φ = 8342175831556.

The previous prime is 8342175831551. The next prime is 8342175831571. The reversal of 8342175831557 is 7551385712438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6214221351556 + 2127954480001 = 2492834^2 + 1458751^2 .

It is a cyclic number.

It is not a de Polignac number, because 8342175831557 - 2⁴ = 8342175831541 is a prime.

It is a super-2 number, since 2×8342175831557² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8342175831496 and 8342175831505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8342175831551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4171087915778 + 4171087915779.

It is an arithmetic number, because the mean of its divisors is an integer number (4171087915779).

Almost surely, 2^{8342175831557} is an apocalyptic number.

It is an amenable number.

8342175831557 is a deficient number, since it is larger than the sum of its proper divisors (1).

8342175831557 is an equidigital number, since it uses as much as digits as its factorization.

8342175831557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224000, while the sum is 59.

The spelling of 8342175831557 in words is "eight trillion, three hundred forty-two billion, one hundred seventy-five million, eight hundred thirty-one thousand, five hundred fifty-seven".