91397000794 has 12 divisors (see below), whose sum is σ = 150691749642. Its totient is φ = 41544091160.

The previous prime is 91397000791. The next prime is 91397000803. The reversal of 91397000794 is 49700079319.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 53132555025 + 38264445769 = 230505^2 + 195613^2 .

It is a super-3 number, since 3×91397000794³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (91397000791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188836537 + ... + 188837020.

Almost surely, 2^91397000794 is an apocalyptic number.

91397000794 is a deficient number, since it is larger than the sum of its proper divisors (59294748848).

91397000794 is a wasteful number, since it uses less digits than its factorization.

91397000794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377673581 (or 377673570 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 49.

The spelling of 91397000794 in words is "ninety-one billion, three hundred ninety-seven million, seven hundred ninety-four", and thus it is an aban number.