23434567678 has 32 divisors (see below), whose sum is σ = 37074359520. Its totient is φ = 11095418880.

The previous prime is 23434567669. The next prime is 23434567693. The reversal of 23434567678 is 87676543432.

It is a happy number.

23434567678 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881038 + ... + 907246.

It is an arithmetic number, because the mean of its divisors is an integer number (1158573735).

Almost surely, 2^23434567678 is an apocalyptic number.

23434567678 is a deficient number, since it is larger than the sum of its proper divisors (13639791842).

23434567678 is a wasteful number, since it uses less digits than its factorization.

23434567678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26572.

The product of its digits is 20321280, while the sum is 55.

The spelling of 23434567678 in words is "twenty-three billion, four hundred thirty-four million, five hundred sixty-seven thousand, six hundred seventy-eight".