13621653424 has 10 divisors (see below), whose sum is σ = 26391953540.
Its totient is φ = 6810826704.
The previous prime is 13621653407. The next prime is 13621653431. The reversal of 13621653424 is 42435612631.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425676654 + ... + 425676685.
It is an arithmetic number, because the mean of its divisors is an integer number (2639195354).
Almost surely, 213621653424 is an apocalyptic number.
It is an amenable number.
13621653424 is a deficient number, since it is larger than the sum of its proper divisors (12770300116).
13621653424 is an equidigital number, since it uses as much as digits as its factorization.
13621653424 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 851353347 (or 851353341 counting only the distinct ones).
The product of its digits is 103680, while the sum is 37.
The spelling of 13621653424 in words is "thirteen billion, six hundred twenty-one million, six hundred fifty-three thousand, four hundred twenty-four".