21885704070369 has 8 divisors (see below), whose sum is σ = 29240858554560. Its totient is φ = 14560509483216.

The previous prime is 21885704070367. The next prime is 21885704070383. The reversal of 21885704070369 is 96307040758812.

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

It is not a de Polignac number, because 21885704070369 - 2¹ = 21885704070367 is a prime.

It is a super-2 number, since 2×21885704070369² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21885704070367) 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, 7489972554 + ... + 7489975475.

It is an arithmetic number, because the mean of its divisors is an integer number (3655107319320).

It is a 1-persistent number, because it is pandigital, but 2⋅21885704070369 = 43771408140738 is not.

Almost surely, 2^{21885704070369} is an apocalyptic number.

It is an amenable number.

21885704070369 is a deficient number, since it is larger than the sum of its proper divisors (7355154484191).

21885704070369 is a wasteful number, since it uses less digits than its factorization.

21885704070369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14979948519.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 21885704070369 in words is "twenty-one trillion, eight hundred eighty-five billion, seven hundred four million, seventy thousand, three hundred sixty-nine".