6491737072 has 20 divisors (see below), whose sum is σ = 12613998456. Its totient is φ = 3236511680.

The previous prime is 6491737069. The next prime is 6491737081. The reversal of 6491737072 is 2707371946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579079 + ... + 590182.

Almost surely, 2^6491737072 is an apocalyptic number.

It is an amenable number.

6491737072 is a deficient number, since it is larger than the sum of its proper divisors (6122261384).

6491737072 is a wasteful number, since it uses less digits than its factorization.

6491737072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169616 (or 1169610 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 6491737072 is about 80571.3166827997. The cubic root of 6491737072 is about 1865.4644361279.

The spelling of 6491737072 in words is "six billion, four hundred ninety-one million, seven hundred thirty-seven thousand, seventy-two".