7149936887 has 2 divisors, whose sum is σ = 7149936888. Its totient is φ = 7149936886.

The previous prime is 7149936851. The next prime is 7149936907. The reversal of 7149936887 is 7886399417.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7149936887 is a prime.

It is a super-2 number, since 2×7149936887² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7149936847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574968443 + 3574968444.

It is an arithmetic number, because the mean of its divisors is an integer number (3574968444).

Almost surely, 2^7149936887 is an apocalyptic number.

7149936887 is a deficient number, since it is larger than the sum of its proper divisors (1).

7149936887 is an equidigital number, since it uses as much as digits as its factorization.

7149936887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 62.

The square root of 7149936887 is about 84557.2994306228. The cubic root of 7149936887 is about 1926.4928555377.

The spelling of 7149936887 in words is "seven billion, one hundred forty-nine million, nine hundred thirty-six thousand, eight hundred eighty-seven".