91300029427 has 4 divisors (see below), whose sum is σ = 91374318720. Its totient is φ = 91225740136.

The previous prime is 91300029413. The next prime is 91300029451. The reversal of 91300029427 is 72492000319.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91300029427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91300029407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37142803 + ... + 37145260.

It is an arithmetic number, because the mean of its divisors is an integer number (22843579680).

Almost surely, 2^91300029427 is an apocalyptic number.

91300029427 is a deficient number, since it is larger than the sum of its proper divisors (74289293).

91300029427 is a wasteful number, since it uses less digits than its factorization.

91300029427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74289292.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 91300029427 in words is "ninety-one billion, three hundred million, twenty-nine thousand, four hundred twenty-seven".