22955806387 has 4 divisors (see below), whose sum is σ = 23136560896. Its totient is φ = 22775051880.

The previous prime is 22955806337. The next prime is 22955806439. The reversal of 22955806387 is 78360855922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78360855922 = 2 ⋅39180427961.

It is a cyclic number.

It is not a de Polignac number, because 22955806387 - 2¹⁵ = 22955773619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22955806337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90377064 + ... + 90377317.

It is an arithmetic number, because the mean of its divisors is an integer number (5784140224).

Almost surely, 2^22955806387 is an apocalyptic number.

22955806387 is a deficient number, since it is larger than the sum of its proper divisors (180754509).

22955806387 is a wasteful number, since it uses less digits than its factorization.

22955806387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180754508.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 22955806387 in words is "twenty-two billion, nine hundred fifty-five million, eight hundred six thousand, three hundred eighty-seven".