22877981678 has 4 divisors (see below), whose sum is σ = 34316972520. Its totient is φ = 11438990838.

The previous prime is 22877981677. The next prime is 22877981689. The reversal of 22877981678 is 87618977822.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22877981677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5719495418 + ... + 5719495421.

It is an arithmetic number, because the mean of its divisors is an integer number (8579243130).

Almost surely, 2^22877981678 is an apocalyptic number.

22877981678 is a deficient number, since it is larger than the sum of its proper divisors (11438990842).

22877981678 is a wasteful number, since it uses less digits than its factorization.

22877981678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438990841.

The product of its digits is 37933056, while the sum is 65.

The spelling of 22877981678 in words is "twenty-two billion, eight hundred seventy-seven million, nine hundred eighty-one thousand, six hundred seventy-eight".