14921655857 has 8 divisors (see below), whose sum is σ = 15136142400. Its totient is φ = 14707289520.

The previous prime is 14921655841. The next prime is 14921655869. The reversal of 14921655857 is 75855612941.

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

It is a cyclic number.

It is not a de Polignac number, because 14921655857 - 2⁴ = 14921655841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14921655799 and 14921655808.

It is not an unprimeable number, because it can be changed into a prime (14921655877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236894 + ... + 293192.

It is an arithmetic number, because the mean of its divisors is an integer number (1892017800).

Almost surely, 2^14921655857 is an apocalyptic number.

It is an amenable number.

14921655857 is a deficient number, since it is larger than the sum of its proper divisors (214486543).

14921655857 is an equidigital number, since it uses as much as digits as its factorization.

14921655857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60103.

The product of its digits is 3024000, while the sum is 53.

The spelling of 14921655857 in words is "fourteen billion, nine hundred twenty-one million, six hundred fifty-five thousand, eight hundred fifty-seven".