14408728656 has 80 divisors (see below), whose sum is σ = 42557883264. Its totient is φ = 4115054592.

The previous prime is 14408728651. The next prime is 14408728661. The reversal of 14408728656 is 65682780441.

It is an interprime number because it is at equal distance from previous prime (14408728651) and next prime (14408728661).

It is a super-2 number, since 2×14408728656² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 14408728599 and 14408728608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14408728651) 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, 944320 + ... + 959456.

Almost surely, 2^14408728656 is an apocalyptic number.

14408728656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

14408728656 is an abundant number, since it is smaller than the sum of its proper divisors (28149154608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14408728656 is a wasteful number, since it uses less digits than its factorization.

14408728656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17988 (or 17982 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 14408728656 in words is "fourteen billion, four hundred eight million, seven hundred twenty-eight thousand, six hundred fifty-six".