13623099391 has 16 divisors (see below), whose sum is σ = 14934585600. Its totient is φ = 12323893120.

The previous prime is 13623099377. The next prime is 13623099401. The reversal of 13623099391 is 19399032631.

It is not a de Polignac number, because 13623099391 - 2⁷ = 13623099263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13623090391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3362535 + ... + 3366583.

It is an arithmetic number, because the mean of its divisors is an integer number (933411600).

Almost surely, 2^13623099391 is an apocalyptic number.

13623099391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13623099391 is a deficient number, since it is larger than the sum of its proper divisors (1311486209).

13623099391 is a wasteful number, since it uses less digits than its factorization.

13623099391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486.

The product of its (nonzero) digits is 236196, while the sum is 46.

The spelling of 13623099391 in words is "thirteen billion, six hundred twenty-three million, ninety-nine thousand, three hundred ninety-one".