6487097491 has 8 divisors (see below), whose sum is σ = 7736166144. Its totient is φ = 5318613960.

The previous prime is 6487097471. The next prime is 6487097501. The reversal of 6487097491 is 1947907846.

6487097491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6487097491 - 2¹¹ = 6487095443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6487097411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20146105 + ... + 20146426.

It is an arithmetic number, because the mean of its divisors is an integer number (967020768).

Almost surely, 2^6487097491 is an apocalyptic number.

6487097491 is a deficient number, since it is larger than the sum of its proper divisors (1249068653).

6487097491 is a wasteful number, since it uses less digits than its factorization.

6487097491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40292561.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 6487097491 is about 80542.5197706156. The cubic root of 6487097491 is about 1865.0199204843.

The spelling of 6487097491 in words is "six billion, four hundred eighty-seven million, ninety-seven thousand, four hundred ninety-one".