8057071949 has 2 divisors, whose sum is σ = 8057071950. Its totient is φ = 8057071948.

The previous prime is 8057071877. The next prime is 8057071963. The reversal of 8057071949 is 9491707508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4541412100 + 3515659849 = 67390^2 + 59293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8057071949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8057071897 and 8057071906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8057071249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4028535974 + 4028535975.

It is an arithmetic number, because the mean of its divisors is an integer number (4028535975).

Almost surely, 2^8057071949 is an apocalyptic number.

It is an amenable number.

8057071949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8057071949 is an equidigital number, since it uses as much as digits as its factorization.

8057071949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 8057071949 is about 89761.1940038678. The cubic root of 8057071949 is about 2004.7447306144.

The spelling of 8057071949 in words is "eight billion, fifty-seven million, seventy-one thousand, nine hundred forty-nine".