22858978464 has 192 divisors, whose sum is σ = 80679110400. Its totient is φ = 6146924544.

The previous prime is 22858978433. The next prime is 22858978477. The reversal of 22858978464 is 46487985822.

22858978464 is a `hidden beast` number, since 2 + 2 + 8 + 589 + 7 + 8 + 46 + 4 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8349 + ... + 213980.

It is an arithmetic number, because the mean of its divisors is an integer number (420203700).

Almost surely, 2^22858978464 is an apocalyptic number.

22858978464 is a gapful number since it is divisible by the number (24) 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 22858978464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40339555200).

22858978464 is an abundant number, since it is smaller than the sum of its proper divisors (57820131936).

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

22858978464 is a wasteful number, since it uses less digits than its factorization.

22858978464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222372 (or 222358 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 22858978464 in words is "twenty-two billion, eight hundred fifty-eight million, nine hundred seventy-eight thousand, four hundred sixty-four".