845938094957 has 2 divisors, whose sum is σ = 845938094958. Its totient is φ = 845938094956.

The previous prime is 845938094927. The next prime is 845938094959. The reversal of 845938094957 is 759490839548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 651659020516 + 194279074441 = 807254^2 + 440771^2 .

It is a cyclic number.

It is not a de Polignac number, because 845938094957 - 2¹² = 845938090861 is a prime.

It is a super-2 number, since 2×845938094957² (a number of 25 digits) contains 22 as substring.

Together with 845938094959, 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 (845938094959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422969047478 + 422969047479.

It is an arithmetic number, because the mean of its divisors is an integer number (422969047479).

Almost surely, 2^845938094957 is an apocalyptic number.

It is an amenable number.

845938094957 is a deficient number, since it is larger than the sum of its proper divisors (1).

845938094957 is an equidigital number, since it uses as much as digits as its factorization.

845938094957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 391910400, while the sum is 71.

The spelling of 845938094957 in words is "eight hundred forty-five billion, nine hundred thirty-eight million, ninety-four thousand, nine hundred fifty-seven".