42794098157 has 2 divisors, whose sum is σ = 42794098158. Its totient is φ = 42794098156.

The previous prime is 42794098121. The next prime is 42794098159. The reversal of 42794098157 is 75189049724.

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., 25755756196 + 17038341961 = 160486^2 + 130531^2 .

It is a cyclic number.

It is not a de Polignac number, because 42794098157 - 2²⁶ = 42726989293 is a prime.

Together with 42794098159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42794098159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21397049078 + 21397049079.

It is an arithmetic number, because the mean of its divisors is an integer number (21397049079).

Almost surely, 2^42794098157 is an apocalyptic number.

It is an amenable number.

42794098157 is a deficient number, since it is larger than the sum of its proper divisors (1).

42794098157 is an equidigital number, since it uses as much as digits as its factorization.

42794098157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 42794098157 in words is "forty-two billion, seven hundred ninety-four million, ninety-eight thousand, one hundred fifty-seven".