21474302867 has 8 divisors (see below), whose sum is σ = 21933313536. Its totient is φ = 21015380232.

The previous prime is 21474302849. The next prime is 21474302869. The reversal of 21474302867 is 76820347412.

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-21474302867 is a prime.

It is a super-2 number, since 2×21474302867² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21474302869) 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, 778058 + ... + 805184.

It is an arithmetic number, because the mean of its divisors is an integer number (2741664192).

Almost surely, 2^21474302867 is an apocalyptic number.

21474302867 is a deficient number, since it is larger than the sum of its proper divisors (459010669).

21474302867 is a wasteful number, since it uses less digits than its factorization.

21474302867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44017.

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 21474302867 in words is "twenty-one billion, four hundred seventy-four million, three hundred two thousand, eight hundred sixty-seven".