21859369416313 has 8 divisors (see below), whose sum is σ = 25680937496256. Its totient is φ = 18343526782800.

The previous prime is 21859369416271. The next prime is 21859369416329. The reversal of 21859369416313 is 31361496395812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21859369416313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21859369416373) 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, 76431361453 + ... + 76431361738.

It is an arithmetic number, because the mean of its divisors is an integer number (3210117187032).

Almost surely, 2^{21859369416313} is an apocalyptic number.

It is an amenable number.

21859369416313 is a deficient number, since it is larger than the sum of its proper divisors (3821568079943).

21859369416313 is a wasteful number, since it uses less digits than its factorization.

21859369416313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152862723215.

The product of its digits is 25194240, while the sum is 61.

The spelling of 21859369416313 in words is "twenty-one trillion, eight hundred fifty-nine billion, three hundred sixty-nine million, four hundred sixteen thousand, three hundred thirteen".