6475830121 has 4 divisors (see below), whose sum is σ = 6523099092. Its totient is φ = 6428561152.

The previous prime is 6475830091. The next prime is 6475830133. The reversal of 6475830121 is 1210385746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1954612521 + 4521217600 = 44211^2 + 67240^2 .

It is a cyclic number.

It is not a de Polignac number, because 6475830121 - 2²⁹ = 5938959209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6475830421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23634280 + ... + 23634553.

It is an arithmetic number, because the mean of its divisors is an integer number (1630774773).

Almost surely, 2^6475830121 is an apocalyptic number.

It is an amenable number.

6475830121 is a deficient number, since it is larger than the sum of its proper divisors (47268971).

6475830121 is a wasteful number, since it uses less digits than its factorization.

6475830121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47268970.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 6475830121 is about 80472.5426527583. The cubic root of 6475830121 is about 1863.9395170353.

The spelling of 6475830121 in words is "six billion, four hundred seventy-five million, eight hundred thirty thousand, one hundred twenty-one".