91738345742 has 16 divisors (see below), whose sum is σ = 139509482112. Its totient is φ = 45237122040.

The previous prime is 91738345739. The next prime is 91738345763. The reversal of 91738345742 is 24754383719.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 389138 + ... + 578709.

It is an arithmetic number, because the mean of its divisors is an integer number (8719342632).

Almost surely, 2^91738345742 is an apocalyptic number.

91738345742 is a deficient number, since it is larger than the sum of its proper divisors (47771136370).

91738345742 is a wasteful number, since it uses less digits than its factorization.

91738345742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968503.

The product of its digits is 5080320, while the sum is 53.

The spelling of 91738345742 in words is "ninety-one billion, seven hundred thirty-eight million, three hundred forty-five thousand, seven hundred forty-two".