21313702677 has 8 divisors (see below), whose sum is σ = 28441398240. Its totient is φ = 14197571120.

The previous prime is 21313702673. The next prime is 21313702691. The reversal of 21313702677 is 77620731312.

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 21313702677 - 2² = 21313702673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313702673) 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, 2886699 + ... + 2894072.

It is an arithmetic number, because the mean of its divisors is an integer number (3555174780).

Almost surely, 2^21313702677 is an apocalyptic number.

It is an amenable number.

21313702677 is a deficient number, since it is larger than the sum of its proper divisors (7127695563).

21313702677 is a wasteful number, since it uses less digits than its factorization.

21313702677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782003.

The product of its (nonzero) digits is 74088, while the sum is 39.

The spelling of 21313702677 in words is "twenty-one billion, three hundred thirteen million, seven hundred two thousand, six hundred seventy-seven".