22978954908 has 384 divisors, whose sum is σ = 77853081600. Its totient is φ = 5695329024.

The previous prime is 22978954907. The next prime is 22978954993. The reversal of 22978954908 is 80945987922.

It is a happy number.

22978954908 is a `hidden beast` number, since 2 + 2 + 9 + 7 + 89 + 549 + 0 + 8 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22978954903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13335735 + ... + 13337457.

It is an arithmetic number, because the mean of its divisors is an integer number (202742400).

Almost surely, 2^22978954908 is an apocalyptic number.

22978954908 is a gapful number since it is divisible by the number (28) 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 22978954908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38926540800).

22978954908 is an abundant number, since it is smaller than the sum of its proper divisors (54874126692).

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

22978954908 is a wasteful number, since it uses less digits than its factorization.

22978954908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 22978954908 in words is "twenty-two billion, nine hundred seventy-eight million, nine hundred fifty-four thousand, nine hundred eight".