8242772431 has 2 divisors, whose sum is σ = 8242772432. Its totient is φ = 8242772430.

The previous prime is 8242772423. The next prime is 8242772441. The reversal of 8242772431 is 1342772428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8242772431 - 2³ = 8242772423 is a prime.

It is a super-2 number, since 2×8242772431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8242772441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4121386215 + 4121386216.

It is an arithmetic number, because the mean of its divisors is an integer number (4121386216).

Almost surely, 2^8242772431 is an apocalyptic number.

8242772431 is a deficient number, since it is larger than the sum of its proper divisors (1).

8242772431 is an equidigital number, since it uses as much as digits as its factorization.

8242772431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 40.

The square root of 8242772431 is about 90789.7154472906. The cubic root of 8242772431 is about 2020.0297704170.

The spelling of 8242772431 in words is "eight billion, two hundred forty-two million, seven hundred seventy-two thousand, four hundred thirty-one".