91241394603723 has 384 divisors, whose sum is σ = 176053545507840. Its totient is φ = 46259849502720.

The previous prime is 91241394603649. The next prime is 91241394603757. The reversal of 91241394603723 is 32730649314219.

91241394603723 is a `hidden beast` number, since 9 + 1 + 2 + 4 + 1 + 3 + 9 + 4 + 603 + 7 + 23 = 666.

It is not a de Polignac number, because 91241394603723 - 2²⁶ = 91241327494859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91241394603723.

It is not an unprimeable number, because it can be changed into a prime (91241394603523) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 12984398736 + ... + 12984405762.

It is an arithmetic number, because the mean of its divisors is an integer number (458472774760).

Almost surely, 2^{91241394603723} is an apocalyptic number.

91241394603723 is a deficient number, since it is larger than the sum of its proper divisors (84812150904117).

91241394603723 is a wasteful number, since it uses less digits than its factorization.

91241394603723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384 (or 7371 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 91241394603723 in words is "ninety-one trillion, two hundred forty-one billion, three hundred ninety-four million, six hundred three thousand, seven hundred twenty-three".