41242790561 has 32 divisors (see below), whose sum is σ = 50883227136. Its totient is φ = 32662080000.

The previous prime is 41242790557. The next prime is 41242790593. The reversal of 41242790561 is 16509724214.

It is a cyclic number.

It is not a de Polignac number, because 41242790561 - 2² = 41242790557 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (41242790521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635771 + ... + 697631.

It is an arithmetic number, because the mean of its divisors is an integer number (1590100848).

Almost surely, 2^41242790561 is an apocalyptic number.

41242790561 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

41242790561 is a deficient number, since it is larger than the sum of its proper divisors (9640436575).

41242790561 is a wasteful number, since it uses less digits than its factorization.

41242790561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62033.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 41242790561 in words is "forty-one billion, two hundred forty-two million, seven hundred ninety thousand, five hundred sixty-one".