42850468128791 has 2 divisors, whose sum is σ = 42850468128792. Its totient is φ = 42850468128790.

The previous prime is 42850468128763. The next prime is 42850468128803. The reversal of 42850468128791 is 19782186405824.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42850468128791 is a prime.

It is a super-3 number, since 3×42850468128791³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42850468128701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21425234064395 + 21425234064396.

It is an arithmetic number, because the mean of its divisors is an integer number (21425234064396).

Almost surely, 2^{42850468128791} is an apocalyptic number.

42850468128791 is a deficient number, since it is larger than the sum of its proper divisors (1).

42850468128791 is an equidigital number, since it uses as much as digits as its factorization.

42850468128791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61931520, while the sum is 65.

The spelling of 42850468128791 in words is "forty-two trillion, eight hundred fifty billion, four hundred sixty-eight million, one hundred twenty-eight thousand, seven hundred ninety-one".