91610828147 has 2 divisors, whose sum is σ = 91610828148. Its totient is φ = 91610828146.

The previous prime is 91610828137. The next prime is 91610828167. The reversal of 91610828147 is 74182801619.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91610828147 - 2¹⁰ = 91610827123 is a prime.

It is not a weakly prime, because it can be changed into another prime (91610828137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45805414073 + 45805414074.

It is an arithmetic number, because the mean of its divisors is an integer number (45805414074).

Almost surely, 2^91610828147 is an apocalyptic number.

91610828147 is a deficient number, since it is larger than the sum of its proper divisors (1).

91610828147 is an equidigital number, since it uses as much as digits as its factorization.

91610828147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 47.

The spelling of 91610828147 in words is "ninety-one billion, six hundred ten million, eight hundred twenty-eight thousand, one hundred forty-seven".