23861620481 has 2 divisors, whose sum is σ = 23861620482. Its totient is φ = 23861620480.

The previous prime is 23861620477. The next prime is 23861620487. The reversal of 23861620481 is 18402616832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18663931456 + 5197689025 = 136616^2 + 72095^2 .

It is a cyclic number.

It is not a de Polignac number, because 23861620481 - 2² = 23861620477 is a prime.

It is a super-2 number, since 2×23861620481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23861620487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11930810240 + 11930810241.

It is an arithmetic number, because the mean of its divisors is an integer number (11930810241).

Almost surely, 2^23861620481 is an apocalyptic number.

It is an amenable number.

23861620481 is a deficient number, since it is larger than the sum of its proper divisors (1).

23861620481 is an equidigital number, since it uses as much as digits as its factorization.

23861620481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 23861620481 in words is "twenty-three billion, eight hundred sixty-one million, six hundred twenty thousand, four hundred eighty-one".