22779364993 has 32 divisors (see below), whose sum is σ = 30385198080. Its totient is φ = 16540200000.

The previous prime is 22779364991. The next prime is 22779365003. The reversal of 22779364993 is 39946397722.

It is a cyclic number.

It is not a de Polignac number, because 22779364993 - 2¹ = 22779364991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22779364991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38383 + ... + 216868.

It is an arithmetic number, because the mean of its divisors is an integer number (949537440).

Almost surely, 2^22779364993 is an apocalyptic number.

It is an amenable number.

22779364993 is a deficient number, since it is larger than the sum of its proper divisors (7605833087).

22779364993 is a wasteful number, since it uses less digits than its factorization.

22779364993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255349.

The product of its digits is 30862944, while the sum is 61.

The spelling of 22779364993 in words is "twenty-two billion, seven hundred seventy-nine million, three hundred sixty-four thousand, nine hundred ninety-three".