41991865377 has 32 divisors (see below), whose sum is σ = 69839677440. Its totient is φ = 21803013120.

The previous prime is 41991865327. The next prime is 41991865379. The reversal of 41991865377 is 77356819914.

It is not a de Polignac number, because 41991865377 - 2⁶ = 41991865313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41991865377.

It is not an unprimeable number, because it can be changed into a prime (41991865379) 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, 426433 + ... + 515585.

It is an arithmetic number, because the mean of its divisors is an integer number (2182489920).

Almost surely, 2^41991865377 is an apocalyptic number.

It is an amenable number.

41991865377 is a deficient number, since it is larger than the sum of its proper divisors (27847812063).

41991865377 is a wasteful number, since it uses less digits than its factorization.

41991865377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91213.

The product of its digits is 11430720, while the sum is 60.

The spelling of 41991865377 in words is "forty-one billion, nine hundred ninety-one million, eight hundred sixty-five thousand, three hundred seventy-seven".