245875578541 has 2 divisors, whose sum is σ = 245875578542. Its totient is φ = 245875578540.

The previous prime is 245875578523. The next prime is 245875578551. The reversal of 245875578541 is 145875578542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243299508516 + 2576070025 = 493254^2 + 50755^2 .

It is a cyclic number.

It is not a de Polignac number, because 245875578541 - 2²³ = 245867189933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245875578541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245875578551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122937789270 + 122937789271.

It is an arithmetic number, because the mean of its divisors is an integer number (122937789271).

Almost surely, 2^245875578541 is an apocalyptic number.

It is an amenable number.

245875578541 is a deficient number, since it is larger than the sum of its proper divisors (1).

245875578541 is an equidigital number, since it uses as much as digits as its factorization.

245875578541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720000, while the sum is 61.

Subtracting from 245875578541 its reverse (145875578542), we obtain a palindrome (99999999999).

The spelling of 245875578541 in words is "two hundred forty-five billion, eight hundred seventy-five million, five hundred seventy-eight thousand, five hundred forty-one".