23199907725541 has 2 divisors, whose sum is σ = 23199907725542. Its totient is φ = 23199907725540.

The previous prime is 23199907725521. The next prime is 23199907725557. The reversal of 23199907725541 is 14552770999132.

23199907725541 = T_3932759 + T_3932760 + T_3932761.

23199907725541 = 3405870² + 3405871².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11599957268641 + 11599950456900 = 3405871^2 + 3405870^2 .

It is a cyclic number.

It is not a de Polignac number, because 23199907725541 - 2¹¹ = 23199907723493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23199907725521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11599953862770 + 11599953862771.

It is an arithmetic number, because the mean of its divisors is an integer number (11599953862771).

Almost surely, 2^{23199907725541} is an apocalyptic number.

23199907725541 is the 3932761-st centered triangular number and also the 3405871-st centered square number.

It is an amenable number.

23199907725541 is a deficient number, since it is larger than the sum of its proper divisors (1).

23199907725541 is an equidigital number, since it uses as much as digits as its factorization.

23199907725541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42865200, while the sum is 64.

The spelling of 23199907725541 in words is "twenty-three trillion, one hundred ninety-nine billion, nine hundred seven million, seven hundred twenty-five thousand, five hundred forty-one".