41997939815 has 16 divisors (see below), whose sum is σ = 57130802400. Its totient is φ = 29381553792.

The previous prime is 41997939811. The next prime is 41997939839. The reversal of 41997939815 is 51893979914.

It is not a de Polignac number, because 41997939815 - 2² = 41997939811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41997939811) 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 15 ways as a sum of consecutive naturals, for example, 17001980 + ... + 17004449.

It is an arithmetic number, because the mean of its divisors is an integer number (3570675150).

Almost surely, 2^41997939815 is an apocalyptic number.

41997939815 is a deficient number, since it is larger than the sum of its proper divisors (15132862585).

41997939815 is a wasteful number, since it uses less digits than its factorization.

41997939815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34006466.

The product of its digits is 22044960, while the sum is 65.

The spelling of 41997939815 in words is "forty-one billion, nine hundred ninety-seven million, nine hundred thirty-nine thousand, eight hundred fifteen".