23621861355059 has 4 divisors (see below), whose sum is σ = 25769303296440. Its totient is φ = 21474419413680.

The previous prime is 23621861355013. The next prime is 23621861355187. The reversal of 23621861355059 is 95055316812632.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23621861355059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23621861354995 and 23621861355013.

It is not an unprimeable number, because it can be changed into a prime (23621861352059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073720970674 + ... + 1073720970695.

It is an arithmetic number, because the mean of its divisors is an integer number (6442325824110).

Almost surely, 2^{23621861355059} is an apocalyptic number.

23621861355059 is a deficient number, since it is larger than the sum of its proper divisors (2147441941381).

23621861355059 is a wasteful number, since it uses less digits than its factorization.

23621861355059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147441941380.

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 23621861355059 in words is "twenty-three trillion, six hundred twenty-one billion, eight hundred sixty-one million, three hundred fifty-five thousand, fifty-nine".