91647279127 has 8 divisors (see below), whose sum is σ = 92543278464. Its totient is φ = 90751399608.

The previous prime is 91647279043. The next prime is 91647279149. The reversal of 91647279127 is 72197274619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91647279127 - 2⁷ = 91647278999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91647279187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2847708 + ... + 2879710.

It is an arithmetic number, because the mean of its divisors is an integer number (11567909808).

Almost surely, 2^91647279127 is an apocalyptic number.

91647279127 is a deficient number, since it is larger than the sum of its proper divisors (895999337).

91647279127 is a wasteful number, since it uses less digits than its factorization.

91647279127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59909.

The product of its digits is 2667168, while the sum is 55.

It can be divided in two parts, 916472 and 79127, that added together give a palindrome (995599).

The spelling of 91647279127 in words is "ninety-one billion, six hundred forty-seven million, two hundred seventy-nine thousand, one hundred twenty-seven".