23454565678 has 8 divisors (see below), whose sum is σ = 37251369072. Its totient is φ = 11037442656.

The previous prime is 23454565619. The next prime is 23454565679. The reversal of 23454565678 is 87656545432.

23454565678 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23454565678² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23454565679) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344920050 + ... + 344920117.

It is an arithmetic number, because the mean of its divisors is an integer number (4656421134).

Almost surely, 2^23454565678 is an apocalyptic number.

23454565678 is a deficient number, since it is larger than the sum of its proper divisors (13796803394).

23454565678 is a wasteful number, since it uses less digits than its factorization.

23454565678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689840186.

The product of its digits is 24192000, while the sum is 55.

The spelling of 23454565678 in words is "twenty-three billion, four hundred fifty-four million, five hundred sixty-five thousand, six hundred seventy-eight".