14640678558 has 48 divisors (see below), whose sum is σ = 35886928896. Its totient is φ = 4436567640.

The previous prime is 14640678557. The next prime is 14640678583. The reversal of 14640678558 is 85587604641.

14640678558 is a `hidden beast` number, since 1 + 46 + 40 + 6 + 7 + 8 + 558 = 666.

14640678558 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14640678557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1363966 + ... + 1374657.

It is an arithmetic number, because the mean of its divisors is an integer number (747644352).

Almost surely, 2^14640678558 is an apocalyptic number.

14640678558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14640678558 is an abundant number, since it is smaller than the sum of its proper divisors (21246250338).

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

14640678558 is a wasteful number, since it uses less digits than its factorization.

14640678558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738651 (or 2738639 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 14640678558 in words is "fourteen billion, six hundred forty million, six hundred seventy-eight thousand, five hundred fifty-eight".