21607733469 has 16 divisors (see below), whose sum is σ = 32943955968. Its totient is φ = 12340569072.

The previous prime is 21607733461. The next prime is 21607733471. The reversal of 21607733469 is 96433770612.

It is not a de Polignac number, because 21607733469 - 2³ = 21607733461 is a prime.

It is a super-2 number, since 2×21607733469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21607733461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239757 + ... + 317330.

It is an arithmetic number, because the mean of its divisors is an integer number (2058997248).

Almost surely, 2^21607733469 is an apocalyptic number.

It is an amenable number.

21607733469 is a deficient number, since it is larger than the sum of its proper divisors (11336222499).

21607733469 is a wasteful number, since it uses less digits than its factorization.

21607733469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558944.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 21607733469 in words is "twenty-one billion, six hundred seven million, seven hundred thirty-three thousand, four hundred sixty-nine".