91428708283 has 16 divisors (see below), whose sum is σ = 100097988480. Its totient is φ = 82819540800.

The previous prime is 91428708281. The next prime is 91428708299. The reversal of 91428708283 is 38280782419.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 91428708283 - 2¹ = 91428708281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91428708283.

It is not an unprimeable number, because it can be changed into a prime (91428708281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3702648 + ... + 3727258.

It is an arithmetic number, because the mean of its divisors is an integer number (6256124280).

Almost surely, 2^91428708283 is an apocalyptic number.

91428708283 is a deficient number, since it is larger than the sum of its proper divisors (8669280197).

91428708283 is a wasteful number, since it uses less digits than its factorization.

91428708283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25818.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 91428708283 in words is "ninety-one billion, four hundred twenty-eight million, seven hundred eight thousand, two hundred eighty-three".