23778827728 has 80 divisors (see below), whose sum is σ = 48356904960. Its totient is φ = 11317017600.

The previous prime is 23778827719. The next prime is 23778827749. The reversal of 23778827728 is 82772887732.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5079693 + ... + 5084371.

It is an arithmetic number, because the mean of its divisors is an integer number (604461312).

Almost surely, 2^23778827728 is an apocalyptic number.

It is an amenable number.

23778827728 is an abundant number, since it is smaller than the sum of its proper divisors (24578077232).

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

23778827728 is a wasteful number, since it uses less digits than its factorization.

23778827728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4916 (or 4910 counting only the distinct ones).

The product of its digits is 29503488, while the sum is 61.

The spelling of 23778827728 in words is "twenty-three billion, seven hundred seventy-eight million, eight hundred twenty-seven thousand, seven hundred twenty-eight".