6490921190 has 32 divisors (see below), whose sum is σ = 12586353696. Its totient is φ = 2395895040.

The previous prime is 6490921159. The next prime is 6490921193. The reversal of 6490921190 is 911290946.

It is a happy number.

It is a super-2 number, since 2×6490921190² = 84264115789582032200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490921193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571709 + ... + 582951.

It is an arithmetic number, because the mean of its divisors is an integer number (393323553).

Almost surely, 2^6490921190 is an apocalyptic number.

6490921190 is a deficient number, since it is larger than the sum of its proper divisors (6095432506).

6490921190 is a wasteful number, since it uses less digits than its factorization.

6490921190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15704.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 6490921190 is about 80566.2534191581. The cubic root of 6490921190 is about 1865.3862822838.

The spelling of 6490921190 in words is "six billion, four hundred ninety million, nine hundred twenty-one thousand, one hundred ninety".