6191956290 has 128 divisors (see below), whose sum is σ = 16490944512. Its totient is φ = 1478062080.

The previous prime is 6191956259. The next prime is 6191956307. The reversal of 6191956290 is 926591916.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6247695 + ... + 6248685.

It is an arithmetic number, because the mean of its divisors is an integer number (128835504).

Almost surely, 2^6191956290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6191956290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8245472256).

6191956290 is an abundant number, since it is smaller than the sum of its proper divisors (10298988222).

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

6191956290 is a wasteful number, since it uses less digits than its factorization.

6191956290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484.

The product of its (nonzero) digits is 262440, while the sum is 48.

The square root of 6191956290 is about 78688.9845531126. The cubic root of 6191956290 is about 1836.2957425587.

The spelling of 6191956290 in words is "six billion, one hundred ninety-one million, nine hundred fifty-six thousand, two hundred ninety".