41897409987 has 18 divisors (see below), whose sum is σ = 56854480132. Its totient is φ = 27444481064.

The previous prime is 41897409973. The next prime is 41897409991. The reversal of 41897409987 is 78990479814.

It is not a de Polignac number, because 41897409987 - 2⁴ = 41897409971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41897409487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20916328 + ... + 20918330.

Almost surely, 2^41897409987 is an apocalyptic number.

41897409987 is a deficient number, since it is larger than the sum of its proper divisors (14957070145).

41897409987 is an frugal number, since it uses more digits than its factorization.

41897409987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 66.

The spelling of 41897409987 in words is "forty-one billion, eight hundred ninety-seven million, four hundred nine thousand, nine hundred eighty-seven".