6172005890 has 32 divisors (see below), whose sum is σ = 12081051504. Its totient is φ = 2260776960.

The previous prime is 6172005877. The next prime is 6172005893. The reversal of 6172005890 is 985002716.

It can be written as a sum of positive squares in 8 ways, for example, as 4703353561 + 1468652329 = 68581^2 + 38323^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6172005893) 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, 484331 + ... + 496910.

Almost surely, 2^6172005890 is an apocalyptic number.

6172005890 is a deficient number, since it is larger than the sum of its proper divisors (5909045614).

6172005890 is a wasteful number, since it uses less digits than its factorization.

6172005890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981302.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 6172005890 is about 78562.1148518801. The cubic root of 6172005890 is about 1834.3214472475.

The spelling of 6172005890 in words is "six billion, one hundred seventy-two million, five thousand, eight hundred ninety".