91770528472351 has 8 divisors (see below), whose sum is σ = 91795559703120. Its totient is φ = 91745497878912.

The previous prime is 91770528472319. The next prime is 91770528472369. The reversal of 91770528472351 is 15327482507719.

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 91770528472351 - 2⁵ = 91770528472319 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 91770528472351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91770528422351) 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, 487090695 + ... + 487279063.

It is an arithmetic number, because the mean of its divisors is an integer number (11474444962890).

Almost surely, 2^{91770528472351} is an apocalyptic number.

91770528472351 is a deficient number, since it is larger than the sum of its proper divisors (25031230769).

91770528472351 is a wasteful number, since it uses less digits than its factorization.

91770528472351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318665.

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 91770528472351 in words is "ninety-one trillion, seven hundred seventy billion, five hundred twenty-eight million, four hundred seventy-two thousand, three hundred fifty-one".