23385784642 has 16 divisors (see below), whose sum is σ = 39081854592. Its totient is φ = 10403733520.

The previous prime is 23385784601. The next prime is 23385784663. The reversal of 23385784642 is 24648758332.

It is a self number, because there is not a number n which added to its sum of digits gives 23385784642.

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, 11307373 + ... + 11309440.

It is an arithmetic number, because the mean of its divisors is an integer number (2442615912).

Almost surely, 2^23385784642 is an apocalyptic number.

23385784642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23385784642 is a deficient number, since it is larger than the sum of its proper divisors (15696069950).

23385784642 is a wasteful number, since it uses less digits than its factorization.

23385784642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22616873.

The product of its digits is 7741440, while the sum is 52.

The spelling of 23385784642 in words is "twenty-three billion, three hundred eighty-five million, seven hundred eighty-four thousand, six hundred forty-two".