8351870094437 has 2 divisors, whose sum is σ = 8351870094438. Its totient is φ = 8351870094436.

The previous prime is 8351870094433. The next prime is 8351870094439. The reversal of 8351870094437 is 7344900781538.

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., 4707745630756 + 3644124463681 = 2169734^2 + 1908959^2 .

It is a cyclic number.

It is not a de Polignac number, because 8351870094437 - 2² = 8351870094433 is a prime.

It is a super-2 number, since 2×8351870094437² (a number of 27 digits) contains 22 as substring.

Together with 8351870094439, 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 (8351870094433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4175935047218 + 4175935047219.

It is an arithmetic number, because the mean of its divisors is an integer number (4175935047219).

Almost surely, 2^{8351870094437} is an apocalyptic number.

It is an amenable number.

8351870094437 is a deficient number, since it is larger than the sum of its proper divisors (1).

8351870094437 is an equidigital number, since it uses as much as digits as its factorization.

8351870094437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 8351870094437 in words is "eight trillion, three hundred fifty-one billion, eight hundred seventy million, ninety-four thousand, four hundred thirty-seven".