7317643487 has 12 divisors (see below), whose sum is σ = 9286212456. Its totient is φ = 5702059440.

The previous prime is 7317643483. The next prime is 7317643507. The reversal of 7317643487 is 7843467137.

It is not a de Polignac number, because 7317643487 - 2² = 7317643483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7317643483) 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 11 ways as a sum of consecutive naturals, for example, 6787628 + ... + 6788705.

It is an arithmetic number, because the mean of its divisors is an integer number (773851038).

Almost surely, 2^7317643487 is an apocalyptic number.

7317643487 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7317643487 is a deficient number, since it is larger than the sum of its proper divisors (1968568969).

7317643487 is a wasteful number, since it uses less digits than its factorization.

7317643487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13576358 (or 13576351 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 50.

The square root of 7317643487 is about 85543.2258393381. The cubic root of 7317643487 is about 1941.4389974552.

The spelling of 7317643487 in words is "seven billion, three hundred seventeen million, six hundred forty-three thousand, four hundred eighty-seven".