41746220721 has 14 divisors (see below), whose sum is σ = 62590699650. Its totient is φ = 27830813328.

The previous prime is 41746220699. The next prime is 41746220729. The reversal of 41746220721 is 12702264714.

41746220721 is a `hidden beast` number, since 4 + 1 + 7 + 4 + 622 + 0 + 7 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41444816400 + 301404321 = 203580^2 + 17361^2 .

It is not a de Polignac number, because 41746220721 - 2⁹ = 41746220209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41746220729) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 28631796 + ... + 28633253.

Almost surely, 2^41746220721 is an apocalyptic number.

It is an amenable number.

41746220721 is a deficient number, since it is larger than the sum of its proper divisors (20844478929).

41746220721 is an frugal number, since it uses more digits than its factorization.

41746220721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57265067 (or 57265052 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 41746220721 in words is "forty-one billion, seven hundred forty-six million, two hundred twenty thousand, seven hundred twenty-one".