23154372632641 has 2 divisors, whose sum is σ = 23154372632642. Its totient is φ = 23154372632640.

The previous prime is 23154372632627. The next prime is 23154372632683. The reversal of 23154372632641 is 14623627345132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22506864339600 + 647508293041 = 4744140^2 + 804679^2 .

It is a cyclic number.

It is not a de Polignac number, because 23154372632641 - 2⁵ = 23154372632609 is a prime.

It is a super-2 number, since 2×23154372632641² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23154312632641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577186316320 + 11577186316321.

It is an arithmetic number, because the mean of its divisors is an integer number (11577186316321).

Almost surely, 2^{23154372632641} is an apocalyptic number.

It is an amenable number.

23154372632641 is a deficient number, since it is larger than the sum of its proper divisors (1).

23154372632641 is an equidigital number, since it uses as much as digits as its factorization.

23154372632641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 49.

Adding to 23154372632641 its reverse (14623627345132), we get a palindrome (37777999977773).

The spelling of 23154372632641 in words is "twenty-three trillion, one hundred fifty-four billion, three hundred seventy-two million, six hundred thirty-two thousand, six hundred forty-one".