22649367840 has 96 divisors (see below), whose sum is σ = 77831482176. Its totient is φ = 5490754560.

The previous prime is 22649367817. The next prime is 22649367847. The reversal of 22649367840 is 4876394622.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (22649367847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2139547 + ... + 2150106.

It is an arithmetic number, because the mean of its divisors is an integer number (810744606).

Almost surely, 2^22649367840 is an apocalyptic number.

22649367840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22649367840 is an abundant number, since it is smaller than the sum of its proper divisors (55182114336).

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

22649367840 is a wasteful number, since it uses less digits than its factorization.

22649367840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289682 (or 4289674 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 22649367840 in words is "twenty-two billion, six hundred forty-nine million, three hundred sixty-seven thousand, eight hundred forty".