22494778695 has 24 divisors (see below), whose sum is σ = 39392925936. Its totient is φ = 11873530368.

The previous prime is 22494778687. The next prime is 22494778717. The reversal of 22494778695 is 59687749422.

It is not a de Polignac number, because 22494778695 - 2³ = 22494778687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2572357 + ... + 2581086.

It is an arithmetic number, because the mean of its divisors is an integer number (1641371914).

Almost surely, 2^22494778695 is an apocalyptic number.

22494778695 is a deficient number, since it is larger than the sum of its proper divisors (16898147241).

22494778695 is a wasteful number, since it uses less digits than its factorization.

22494778695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153551 (or 5153548 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 22494778695 in words is "twenty-two billion, four hundred ninety-four million, seven hundred seventy-eight thousand, six hundred ninety-five".