22811769840 has 320 divisors, whose sum is σ = 77069924352. Its totient is φ = 5565542400.

The previous prime is 22811769839. The next prime is 22811769847. The reversal of 22811769840 is 4896711822.

It is a happy number.

It is a super-3 number, since 3×22811769840³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 22811769840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22811769847) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12457725 + ... + 12459555.

Almost surely, 2^22811769840 is an apocalyptic number.

22811769840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22811769840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38534962176).

22811769840 is an abundant number, since it is smaller than the sum of its proper divisors (54258154512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22811769840 is a wasteful number, since it uses less digits than its factorization.

22811769840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1962 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 22811769840 in words is "twenty-two billion, eight hundred eleven million, seven hundred sixty-nine thousand, eight hundred forty".