91354294388 has 12 divisors (see below), whose sum is σ = 182708588832. Its totient is φ = 39151840440.

The previous prime is 91354294387. The next prime is 91354294393. The reversal of 91354294388 is 88349245319.

91354294388 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91354294387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631326658 + ... + 1631326713.

It is an arithmetic number, because the mean of its divisors is an integer number (15225715736).

Almost surely, 2^91354294388 is an apocalyptic number.

It is an amenable number.

91354294388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91354294388 is a wasteful number, since it uses less digits than its factorization.

91354294388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262653382 (or 3262653380 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The spelling of 91354294388 in words is "ninety-one billion, three hundred fifty-four million, two hundred ninety-four thousand, three hundred eighty-eight".