11641246431 has 4 divisors (see below), whose sum is σ = 15521661912. Its totient is φ = 7760830952.

The previous prime is 11641246411. The next prime is 11641246433. The reversal of 11641246431 is 13464214611.

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 11641246431 - 2⁷ = 11641246303 is a prime.

It is a super-2 number, since 2×11641246431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11641246392 and 11641246401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11641246433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940207736 + ... + 1940207741.

It is an arithmetic number, because the mean of its divisors is an integer number (3880415478).

Almost surely, 2^11641246431 is an apocalyptic number.

11641246431 is a deficient number, since it is larger than the sum of its proper divisors (3880415481).

11641246431 is an equidigital number, since it uses as much as digits as its factorization.

11641246431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880415480.

The product of its digits is 13824, while the sum is 33.

The spelling of 11641246431 in words is "eleven billion, six hundred forty-one million, two hundred forty-six thousand, four hundred thirty-one".