13635554604479 has 4 divisors (see below), whose sum is σ = 13636347063984. Its totient is φ = 13634762144976.

The previous prime is 13635554604473. The next prime is 13635554604481. The reversal of 13635554604479 is 97440645553631.

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 13635554604479 - 2²⁰ = 13635553555903 is a prime.

It is a super-2 number, since 2×13635554604479² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13635554604473) 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, 396203942 + ... + 396238355.

It is an arithmetic number, because the mean of its divisors is an integer number (3409086765996).

Almost surely, 2^{13635554604479} is an apocalyptic number.

13635554604479 is a deficient number, since it is larger than the sum of its proper divisors (792459505).

13635554604479 is an equidigital number, since it uses as much as digits as its factorization.

13635554604479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792459504.

The product of its (nonzero) digits is 163296000, while the sum is 62.

The spelling of 13635554604479 in words is "thirteen trillion, six hundred thirty-five billion, five hundred fifty-four million, six hundred four thousand, four hundred seventy-nine".