6125401211909 has 4 divisors (see below), whose sum is σ = 7000458527904. Its totient is φ = 5250343895916.

The previous prime is 6125401211893. The next prime is 6125401211947. The reversal of 6125401211909 is 9091121045216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6125401211909 - 2⁴ = 6125401211893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6125401211999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437528657987 + ... + 437528658000.

It is an arithmetic number, because the mean of its divisors is an integer number (1750114631976).

Almost surely, 2^{6125401211909} is an apocalyptic number.

It is an amenable number.

6125401211909 is a deficient number, since it is larger than the sum of its proper divisors (875057315995).

6125401211909 is an equidigital number, since it uses as much as digits as its factorization.

6125401211909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875057315994.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 6125401211909 in words is "six trillion, one hundred twenty-five billion, four hundred one million, two hundred eleven thousand, nine hundred nine".