7171887497 has 16 divisors (see below), whose sum is σ = 7780819200. Its totient is φ = 6588760320.

The previous prime is 7171887469. The next prime is 7171887511. The reversal of 7171887497 is 7947881717.

It is a cyclic number.

It is not a de Polignac number, because 7171887497 - 2⁸ = 7171887241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7171887407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60497 + ... + 134177.

It is an arithmetic number, because the mean of its divisors is an integer number (486301200).

Almost surely, 2^7171887497 is an apocalyptic number.

It is an amenable number.

7171887497 is a deficient number, since it is larger than the sum of its proper divisors (608931703).

7171887497 is a wasteful number, since it uses less digits than its factorization.

7171887497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73856.

The product of its digits is 5531904, while the sum is 59.

The square root of 7171887497 is about 84686.9972132676. The cubic root of 7171887497 is about 1928.4623131083.

The spelling of 7171887497 in words is "seven billion, one hundred seventy-one million, eight hundred eighty-seven thousand, four hundred ninety-seven".