23530661854 has 16 divisors (see below), whose sum is σ = 40655904768. Its totient is φ = 10005162552.

The previous prime is 23530661837. The next prime is 23530661893. The reversal of 23530661854 is 45816603532.

It is a self number, because there is not a number n which added to its sum of digits gives 23530661854.

It is a congruent 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, 6615394 + ... + 6618949.

It is an arithmetic number, because the mean of its divisors is an integer number (2540994048).

Almost surely, 2^23530661854 is an apocalyptic number.

23530661854 is a deficient number, since it is larger than the sum of its proper divisors (17125242914).

23530661854 is a wasteful number, since it uses less digits than its factorization.

23530661854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13234479.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 23530661854 in words is "twenty-three billion, five hundred thirty million, six hundred sixty-one thousand, eight hundred fifty-four".