23543461778 has 16 divisors (see below), whose sum is σ = 35752129056. Its totient is φ = 11626176480.

The previous prime is 23543461757. The next prime is 23543461787. The reversal of 23543461778 is 87716434532.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538550 + ... + 580622.

It is an arithmetic number, because the mean of its divisors is an integer number (2234508066).

Almost surely, 2^23543461778 is an apocalyptic number.

23543461778 is a deficient number, since it is larger than the sum of its proper divisors (12208667278).

23543461778 is a wasteful number, since it uses less digits than its factorization.

23543461778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45529.

The product of its digits is 3386880, while the sum is 50.

The spelling of 23543461778 in words is "twenty-three billion, five hundred forty-three million, four hundred sixty-one thousand, seven hundred seventy-eight".