22864610628 has 18 divisors (see below), whose sum is σ = 57796654734. Its totient is φ = 7621536864.

The previous prime is 22864610551. The next prime is 22864610701. The reversal of 22864610628 is 82601646822.

22864610628 is a `hidden beast` number, since 2 + 2 + 8 + 6 + 4 + 6 + 10 + 628 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14708353284 + 8156257344 = 121278^2 + 90312^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317564001 + ... + 317564072.

It is an arithmetic number, because the mean of its divisors is an integer number (3210925263).

Almost surely, 2^22864610628 is an apocalyptic number.

It is an amenable number.

22864610628 is an abundant number, since it is smaller than the sum of its proper divisors (34932044106).

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

22864610628 is a wasteful number, since it uses less digits than its factorization.

22864610628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635128083 (or 635128078 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 22864610628 in words is "twenty-two billion, eight hundred sixty-four million, six hundred ten thousand, six hundred twenty-eight".