23477013843561 has 10 divisors (see below), whose sum is σ = 35070600926922. Its totient is φ = 15651342562320.

The previous prime is 23477013843509. The next prime is 23477013843629. The reversal of 23477013843561 is 16534831077432.

23477013843561 is a `hidden beast` number, since 2 + 3 + 4 + 7 + 7 + 0 + 1 + 38 + 43 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13069092614400 + 10407921229161 = 3615120^2 + 3226131^2 .

It is not a de Polignac number, because 23477013843561 - 2¹³ = 23477013835369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23477013843498 and 23477013843507.

It is not an unprimeable number, because it can be changed into a prime (23477013847561) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 144919838460 + ... + 144919838621.

Almost surely, 2^{23477013843561} is an apocalyptic number.

It is an amenable number.

23477013843561 is a deficient number, since it is larger than the sum of its proper divisors (11593587083361).

23477013843561 is an equidigital number, since it uses as much as digits as its factorization.

23477013843561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289839677093 (or 289839677084 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 23477013843561 in words is "twenty-three trillion, four hundred seventy-seven billion, thirteen million, eight hundred forty-three thousand, five hundred sixty-one".