6491898492 has 48 divisors (see below), whose sum is σ = 16375981440. Its totient is φ = 1994663232.

The previous prime is 6491898437. The next prime is 6491898509. The reversal of 6491898492 is 2948981946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376338 + ... + 393209.

It is an arithmetic number, because the mean of its divisors is an integer number (341166280).

Almost surely, 2^6491898492 is an apocalyptic number.

It is an amenable number.

6491898492 is an abundant number, since it is smaller than the sum of its proper divisors (9884082948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6491898492 is a wasteful number, since it uses less digits than its factorization.

6491898492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769610 (or 769608 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 60.

The square root of 6491898492 is about 80572.3183978220. The cubic root of 6491898492 is about 1865.4798978742.

The spelling of 6491898492 in words is "six billion, four hundred ninety-one million, eight hundred ninety-eight thousand, four hundred ninety-two".