6291471291 has 16 divisors (see below), whose sum is σ = 9589880064. Its totient is φ = 3594047904.

The previous prime is 6291471271. The next prime is 6291471293. The reversal of 6291471291 is 1921741926.

It is not a de Polignac number, because 6291471291 - 2⁵ = 6291471259 is a prime.

It is a super-2 number, since 2×6291471291² = 79165222010954413362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6291471293) 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, 29601 + ... + 116013.

It is an arithmetic number, because the mean of its divisors is an integer number (599367504).

Almost surely, 2^6291471291 is an apocalyptic number.

6291471291 is a deficient number, since it is larger than the sum of its proper divisors (3298408773).

6291471291 is a wasteful number, since it uses less digits than its factorization.

6291471291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89890.

The product of its digits is 54432, while the sum is 42.

The square root of 6291471291 is about 79318.7953198988. The cubic root of 6291471291 is about 1846.0809455868.

The spelling of 6291471291 in words is "six billion, two hundred ninety-one million, four hundred seventy-one thousand, two hundred ninety-one".