7834716157 has 2 divisors, whose sum is σ = 7834716158. Its totient is φ = 7834716156.

The previous prime is 7834716137. The next prime is 7834716161. The reversal of 7834716157 is 7516174387.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5826421561 + 2008294596 = 76331^2 + 44814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7834716157 is a prime.

It is a super-2 number, since 2×7834716157² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7834716157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7834716107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3917358078 + 3917358079.

It is an arithmetic number, because the mean of its divisors is an integer number (3917358079).

Almost surely, 2^7834716157 is an apocalyptic number.

It is an amenable number.

7834716157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7834716157 is an equidigital number, since it uses as much as digits as its factorization.

7834716157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 49.

The square root of 7834716157 is about 88513.9319937828. The cubic root of 7834716157 is about 1986.1303856527.

The spelling of 7834716157 in words is "seven billion, eight hundred thirty-four million, seven hundred sixteen thousand, one hundred fifty-seven".