23643044778 has 16 divisors (see below), whose sum is σ = 48061272096. Its totient is φ = 7751817840.

The previous prime is 23643044759. The next prime is 23643044809. The reversal of 23643044778 is 87744034632.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32298876 + ... + 32299607.

It is an arithmetic number, because the mean of its divisors is an integer number (3003829506).

Almost surely, 2^23643044778 is an apocalyptic number.

23643044778 is an abundant number, since it is smaller than the sum of its proper divisors (24418227318).

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

23643044778 is a wasteful number, since it uses less digits than its factorization.

23643044778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64598549.

The product of its (nonzero) digits is 2709504, while the sum is 48.

The spelling of 23643044778 in words is "twenty-three billion, six hundred forty-three million, forty-four thousand, seven hundred seventy-eight".