22626662942778 has 32 divisors (see below), whose sum is σ = 46020700523520. Its totient is φ = 7414327258800.

The previous prime is 22626662942771. The next prime is 22626662942797. The reversal of 22626662942778 is 87724926662622.

It is not an unprimeable number, because it can be changed into a prime (22626662942771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75624751 + ... + 75923357.

It is an arithmetic number, because the mean of its divisors is an integer number (1438146891360).

Almost surely, 2^{22626662942778} is an apocalyptic number.

22626662942778 is an abundant number, since it is smaller than the sum of its proper divisors (23394037580742).

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

22626662942778 is a wasteful number, since it uses less digits than its factorization.

22626662942778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512722.

The product of its digits is 585252864, while the sum is 69.

The spelling of 22626662942778 in words is "twenty-two trillion, six hundred twenty-six billion, six hundred sixty-two million, nine hundred forty-two thousand, seven hundred seventy-eight".