15449647454 has 8 divisors (see below), whose sum is σ = 23192425848. Its totient is φ = 7718838840.

The previous prime is 15449647417. The next prime is 15449647457. The reversal of 15449647454 is 45474694451.

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

It is a junction number, because it is equal to n+sod(n) for n = 15449647396 and 15449647405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15449647457) 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, 2989217 + ... + 2994380.

It is an arithmetic number, because the mean of its divisors is an integer number (2899053231).

Almost surely, 2^15449647454 is an apocalyptic number.

15449647454 is a deficient number, since it is larger than the sum of its proper divisors (7742778394).

15449647454 is a wasteful number, since it uses less digits than its factorization.

15449647454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5984890.

The product of its digits is 9676800, while the sum is 53.

The spelling of 15449647454 in words is "fifteen billion, four hundred forty-nine million, six hundred forty-seven thousand, four hundred fifty-four".