11431626513 has 8 divisors (see below), whose sum is σ = 15280563648. Its totient is φ = 7601886864.

The previous prime is 11431626511. The next prime is 11431626527. The reversal of 11431626513 is 31562613411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11431626513 - 2¹ = 11431626511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11431626511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4797981 + ... + 4800362.

It is an arithmetic number, because the mean of its divisors is an integer number (1910070456).

Almost surely, 2^11431626513 is an apocalyptic number.

It is an amenable number.

11431626513 is a deficient number, since it is larger than the sum of its proper divisors (3848937135).

11431626513 is an equidigital number, since it uses as much as digits as its factorization.

11431626513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9598743.

The product of its digits is 12960, while the sum is 33.

The spelling of 11431626513 in words is "eleven billion, four hundred thirty-one million, six hundred twenty-six thousand, five hundred thirteen".