14870872721 has 8 divisors (see below), whose sum is σ = 14929147584. Its totient is φ = 14812665520.

The previous prime is 14870872691. The next prime is 14870872729. The reversal of 14870872721 is 12727807841.

It is a happy number.

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 14870872721 - 2⁶ = 14870872657 is a prime.

It is a super-2 number, since 2×14870872721² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14870872729) 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, 448310 + ... + 480336.

It is an arithmetic number, because the mean of its divisors is an integer number (1866143448).

Almost surely, 2^14870872721 is an apocalyptic number.

It is an amenable number.

14870872721 is a deficient number, since it is larger than the sum of its proper divisors (58274863).

14870872721 is a wasteful number, since it uses less digits than its factorization.

14870872721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33831.

The product of its (nonzero) digits is 351232, while the sum is 47.

The spelling of 14870872721 in words is "fourteen billion, eight hundred seventy million, eight hundred seventy-two thousand, seven hundred twenty-one".