91738345741 has 4 divisors (see below), whose sum is σ = 104843823712. Its totient is φ = 78632867772.

The previous prime is 91738345739. The next prime is 91738345763. The reversal of 91738345741 is 14754383719.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14754383719 = 47149 ⋅312931.

It is a cyclic number.

It is not a de Polignac number, because 91738345741 - 2¹ = 91738345739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91738340741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6552738975 + ... + 6552738988.

It is an arithmetic number, because the mean of its divisors is an integer number (26210955928).

Almost surely, 2^91738345741 is an apocalyptic number.

It is an amenable number.

91738345741 is a deficient number, since it is larger than the sum of its proper divisors (13105477971).

91738345741 is a wasteful number, since it uses less digits than its factorization.

91738345741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13105477970.

The product of its digits is 2540160, while the sum is 52.

The spelling of 91738345741 in words is "ninety-one billion, seven hundred thirty-eight million, three hundred forty-five thousand, seven hundred forty-one".