21319625714 has 4 divisors (see below), whose sum is σ = 31979438574. Its totient is φ = 10659812856.

The previous prime is 21319625713. The next prime is 21319625731. The reversal of 21319625714 is 41752691312.

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

It can be written as a sum of positive squares in only one way, i.e., 20205201025 + 1114424689 = 142145^2 + 33383^2 .

It is not an unprimeable number, because it can be changed into a prime (21319625713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5329906427 + ... + 5329906430.

Almost surely, 2^21319625714 is an apocalyptic number.

21319625714 is a deficient number, since it is larger than the sum of its proper divisors (10659812860).

21319625714 is a wasteful number, since it uses less digits than its factorization.

21319625714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10659812859.

The product of its digits is 90720, while the sum is 41.

The spelling of 21319625714 in words is "twenty-one billion, three hundred nineteen million, six hundred twenty-five thousand, seven hundred fourteen".