14977871999 has 4 divisors (see below), whose sum is σ = 15123288336. Its totient is φ = 14832455664.

The previous prime is 14977871971. The next prime is 14977872097. The reversal of 14977871999 is 99917877941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14977871999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14977871959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72708014 + ... + 72708219.

It is an arithmetic number, because the mean of its divisors is an integer number (3780822084).

Almost surely, 2^14977871999 is an apocalyptic number.

14977871999 is a deficient number, since it is larger than the sum of its proper divisors (145416337).

14977871999 is a wasteful number, since it uses less digits than its factorization.

14977871999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145416336.

The product of its digits is 72013536, while the sum is 71.

The spelling of 14977871999 in words is "fourteen billion, nine hundred seventy-seven million, eight hundred seventy-one thousand, nine hundred ninety-nine".