91941014918 has 16 divisors (see below), whose sum is σ = 140015416320. Its totient is φ = 45269655816.

The previous prime is 91941014917. The next prime is 91941014927. The reversal of 91941014918 is 81941014919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91941014911) 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, 307955 + ... + 527937.

It is an arithmetic number, because the mean of its divisors is an integer number (8750963520).

Almost surely, 2^91941014918 is an apocalyptic number.

91941014918 is a deficient number, since it is larger than the sum of its proper divisors (48074401402).

91941014918 is a wasteful number, since it uses less digits than its factorization.

91941014918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223171.

The product of its (nonzero) digits is 93312, while the sum is 47.

Subtracting from 91941014918 its reverse (81941014919), we obtain a palindrome (9999999999).

The spelling of 91941014918 in words is "ninety-one billion, nine hundred forty-one million, fourteen thousand, nine hundred eighteen".