21822924748464 has 120 divisors (see below), whose sum is σ = 73904526727200. Its totient is φ = 5868349507584.

The previous prime is 21822924748463. The next prime is 21822924748483. The reversal of 21822924748464 is 46484742922812.

21822924748464 is a `hidden beast` number, since 2 + 1 + 8 + 2 + 2 + 92 + 4 + 7 + 484 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (21822924748463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636739539 + ... + 636773810.

It is an arithmetic number, because the mean of its divisors is an integer number (615871056060).

Almost surely, 2^{21822924748464} is an apocalyptic number.

21822924748464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21822924748464 is an abundant number, since it is smaller than the sum of its proper divisors (52081601978736).

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

21822924748464 is a wasteful number, since it uses less digits than its factorization.

21822924748464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273513387 (or 1273513378 counting only the distinct ones).

The product of its digits is 99090432, while the sum is 63.

The spelling of 21822924748464 in words is "twenty-one trillion, eight hundred twenty-two billion, nine hundred twenty-four million, seven hundred forty-eight thousand, four hundred sixty-four".