91275729414 has 32 divisors (see below), whose sum is σ = 182852388576. Its totient is φ = 30375125760.

The previous prime is 91275729403. The next prime is 91275729427. The reversal of 91275729414 is 41492757219.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18411024 + ... + 18415980.

It is an arithmetic number, because the mean of its divisors is an integer number (5714137143).

Almost surely, 2^91275729414 is an apocalyptic number.

91275729414 is an abundant number, since it is smaller than the sum of its proper divisors (91576659162).

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

91275729414 is a wasteful number, since it uses less digits than its factorization.

91275729414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9400.

The product of its digits is 1270080, while the sum is 51.

The spelling of 91275729414 in words is "ninety-one billion, two hundred seventy-five million, seven hundred twenty-nine thousand, four hundred fourteen".