23621964061 has 2 divisors, whose sum is σ = 23621964062. Its totient is φ = 23621964060.

The previous prime is 23621964029. The next prime is 23621964097. The reversal of 23621964061 is 16046912632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22678552836 + 943411225 = 150594^2 + 30715^2 .

It is a cyclic number.

It is not a de Polignac number, because 23621964061 - 2⁵ = 23621964029 is a prime.

It is a super-2 number, since 2×23621964061² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23621964001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11810982030 + 11810982031.

It is an arithmetic number, because the mean of its divisors is an integer number (11810982031).

Almost surely, 2^23621964061 is an apocalyptic number.

It is an amenable number.

23621964061 is a deficient number, since it is larger than the sum of its proper divisors (1).

23621964061 is an equidigital number, since it uses as much as digits as its factorization.

23621964061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 23621964061 in words is "twenty-three billion, six hundred twenty-one million, nine hundred sixty-four thousand, sixty-one".