41512501813 has 2 divisors, whose sum is σ = 41512501814. Its totient is φ = 41512501812.

The previous prime is 41512501801. The next prime is 41512501829. The reversal of 41512501813 is 31810521514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38595745764 + 2916756049 = 196458^2 + 54007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41512501813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41512501873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20756250906 + 20756250907.

It is an arithmetic number, because the mean of its divisors is an integer number (20756250907).

Almost surely, 2^41512501813 is an apocalyptic number.

It is an amenable number.

41512501813 is a deficient number, since it is larger than the sum of its proper divisors (1).

41512501813 is an equidigital number, since it uses as much as digits as its factorization.

41512501813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 31.

The spelling of 41512501813 in words is "forty-one billion, five hundred twelve million, five hundred one thousand, eight hundred thirteen".