41990390521 has 8 divisors (see below), whose sum is σ = 42587299584. Its totient is φ = 41393634240.

The previous prime is 41990390513. The next prime is 41990390539. The reversal of 41990390521 is 12509309914.

41990390521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41990390521 - 2³ = 41990390513 is a prime.

It is a super-2 number, since 2×41990390521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41990390821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587680 + ... + 655246.

It is an arithmetic number, because the mean of its divisors is an integer number (5323412448).

Almost surely, 2^41990390521 is an apocalyptic number.

It is an amenable number.

41990390521 is a deficient number, since it is larger than the sum of its proper divisors (596909063).

41990390521 is an equidigital number, since it uses as much as digits as its factorization.

41990390521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76391.

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 41990390521 in words is "forty-one billion, nine hundred ninety million, three hundred ninety thousand, five hundred twenty-one".