28714662913 has 4 divisors (see below), whose sum is σ = 28732849840. Its totient is φ = 28696475988.

The previous prime is 28714662901. The next prime is 28714662917. The reversal of 28714662913 is 31926641782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28714662913 - 2⁹ = 28714662401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28714662917) 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, 9091095 + ... + 9094252.

It is an arithmetic number, because the mean of its divisors is an integer number (7183212460).

Almost surely, 2^28714662913 is an apocalyptic number.

It is an amenable number.

28714662913 is a deficient number, since it is larger than the sum of its proper divisors (18186927).

28714662913 is a wasteful number, since it uses less digits than its factorization.

28714662913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18186926.

The product of its digits is 870912, while the sum is 49.

The spelling of 28714662913 in words is "twenty-eight billion, seven hundred fourteen million, six hundred sixty-two thousand, nine hundred thirteen".