14739081721 has 16 divisors (see below), whose sum is σ = 18147412864. Its totient is φ = 11657188224.

The previous prime is 14739081703. The next prime is 14739081733. The reversal of 14739081721 is 12718093741.

It is a cyclic number.

It is not a de Polignac number, because 14739081721 - 2⁷ = 14739081593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14739081761) 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, 216421 + ... + 276253.

It is an arithmetic number, because the mean of its divisors is an integer number (1134213304).

Almost surely, 2^14739081721 is an apocalyptic number.

It is an amenable number.

14739081721 is a deficient number, since it is larger than the sum of its proper divisors (3408331143).

14739081721 is a wasteful number, since it uses less digits than its factorization.

14739081721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62560.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 14739081721 in words is "fourteen billion, seven hundred thirty-nine million, eighty-one thousand, seven hundred twenty-one".