41501047781 has 2 divisors, whose sum is σ = 41501047782. Its totient is φ = 41501047780.

The previous prime is 41501047769. The next prime is 41501047793. The reversal of 41501047781 is 18774010514.

It is a balanced prime because it is at equal distance from previous prime (41501047769) and next prime (41501047793).

It can be written as a sum of positive squares in only one way, i.e., 40898590756 + 602457025 = 202234^2 + 24545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41501047781 is a prime.

It is a super-2 number, since 2×41501047781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41501047481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20750523890 + 20750523891.

It is an arithmetic number, because the mean of its divisors is an integer number (20750523891).

Almost surely, 2^41501047781 is an apocalyptic number.

It is an amenable number.

41501047781 is a deficient number, since it is larger than the sum of its proper divisors (1).

41501047781 is an equidigital number, since it uses as much as digits as its factorization.

41501047781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 41501047781 in words is "forty-one billion, five hundred one million, forty-seven thousand, seven hundred eighty-one".