91827432007 has 2 divisors, whose sum is σ = 91827432008. Its totient is φ = 91827432006.

The previous prime is 91827431981. The next prime is 91827432061. The reversal of 91827432007 is 70023472819.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91827432007 - 2⁷ = 91827431879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91827432107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45913716003 + 45913716004.

It is an arithmetic number, because the mean of its divisors is an integer number (45913716004).

Almost surely, 2^91827432007 is an apocalyptic number.

91827432007 is a deficient number, since it is larger than the sum of its proper divisors (1).

91827432007 is an equidigital number, since it uses as much as digits as its factorization.

91827432007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 91827432007 in words is "ninety-one billion, eight hundred twenty-seven million, four hundred thirty-two thousand, seven".