41585014689721 has 4 divisors (see below), whose sum is σ = 41666714129700. Its totient is φ = 41503315249744.

The previous prime is 41585014689703. The next prime is 41585014689733. The reversal of 41585014689721 is 12798641058514.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22510517475625 + 19074497214096 = 4744525^2 + 4367436^2 .

It is a cyclic number.

It is not a de Polignac number, because 41585014689721 - 2¹⁵ = 41585014656953 is a prime.

It is a super-2 number, since 2×41585014689721² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41585014689721.

It is not an unprimeable number, because it can be changed into a prime (41585014189721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40849719226 + ... + 40849720243.

It is an arithmetic number, because the mean of its divisors is an integer number (10416678532425).

Almost surely, 2^{41585014689721} is an apocalyptic number.

It is an amenable number.

41585014689721 is a deficient number, since it is larger than the sum of its proper divisors (81699439979).

41585014689721 is an equidigital number, since it uses as much as digits as its factorization.

41585014689721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81699439978.

The product of its (nonzero) digits is 19353600, while the sum is 61.

The spelling of 41585014689721 in words is "forty-one trillion, five hundred eighty-five billion, fourteen million, six hundred eighty-nine thousand, seven hundred twenty-one".