22640321469 has 16 divisors (see below), whose sum is σ = 31673625984. Its totient is φ = 14357534400.

The previous prime is 22640321467. The next prime is 22640321479. The reversal of 22640321469 is 96412304622.

It is not a de Polignac number, because 22640321469 - 2¹ = 22640321467 is a prime.

It is a super-2 number, since 2×22640321469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640321467) 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, 893922 + ... + 918899.

It is an arithmetic number, because the mean of its divisors is an integer number (1979601624).

Almost surely, 2^22640321469 is an apocalyptic number.

It is an amenable number.

22640321469 is a deficient number, since it is larger than the sum of its proper divisors (9033304515).

22640321469 is a wasteful number, since it uses less digits than its factorization.

22640321469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813028.

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 22640321469 in words is "twenty-two billion, six hundred forty million, three hundred twenty-one thousand, four hundred sixty-nine".