91395347743 has 16 divisors (see below), whose sum is σ = 107011840320. Its totient is φ = 76419302400.

The previous prime is 91395347707. The next prime is 91395347753. The reversal of 91395347743 is 34774359319.

It is not a de Polignac number, because 91395347743 - 2²¹ = 91393250591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91395347753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3926323 + ... + 3949531.

It is an arithmetic number, because the mean of its divisors is an integer number (6688240020).

Almost surely, 2^91395347743 is an apocalyptic number.

91395347743 is a deficient number, since it is larger than the sum of its proper divisors (15616492577).

91395347743 is a wasteful number, since it uses less digits than its factorization.

91395347743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36978.

The product of its digits is 8573040, while the sum is 55.

The spelling of 91395347743 in words is "ninety-one billion, three hundred ninety-five million, three hundred forty-seven thousand, seven hundred forty-three".