12400741267 has 4 divisors (see below), whose sum is σ = 13053411880. Its totient is φ = 11748070656.

The previous prime is 12400741259. The next prime is 12400741279. The reversal of 12400741267 is 76214700421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12400741267 - 2³ = 12400741259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400741207) 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, 326335278 + ... + 326335315.

It is an arithmetic number, because the mean of its divisors is an integer number (3263352970).

Almost surely, 2^12400741267 is an apocalyptic number.

12400741267 is a deficient number, since it is larger than the sum of its proper divisors (652670613).

12400741267 is an equidigital number, since it uses as much as digits as its factorization.

12400741267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652670612.

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 12400741267 in words is "twelve billion, four hundred million, seven hundred forty-one thousand, two hundred sixty-seven".