8242373557 has 4 divisors (see below), whose sum is σ = 8991680256. Its totient is φ = 7493066860.

The previous prime is 8242373539. The next prime is 8242373593. The reversal of 8242373557 is 7553732428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8242373557 - 2¹¹ = 8242371509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8242373537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374653333 + ... + 374653354.

It is an arithmetic number, because the mean of its divisors is an integer number (2247920064).

Almost surely, 2^8242373557 is an apocalyptic number.

It is an amenable number.

8242373557 is a deficient number, since it is larger than the sum of its proper divisors (749306699).

8242373557 is a wasteful number, since it uses less digits than its factorization.

8242373557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749306698.

The product of its digits is 1411200, while the sum is 46.

The square root of 8242373557 is about 90787.5187291733. The cubic root of 8242373557 is about 2019.9971863013.

The spelling of 8242373557 in words is "eight billion, two hundred forty-two million, three hundred seventy-three thousand, five hundred fifty-seven".