91401170328 has 96 divisors (see below), whose sum is σ = 280617682800. Its totient is φ = 26643250944.

The previous prime is 91401170227. The next prime is 91401170407. The reversal of 91401170328 is 82307110419.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 91401170292 and 91401170301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2551975 + ... + 2587542.

Almost surely, 2^91401170328 is an apocalyptic number.

It is an amenable number.

91401170328 is an abundant number, since it is smaller than the sum of its proper divisors (189216512472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91401170328 is a wasteful number, since it uses less digits than its factorization.

91401170328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139561 (or 5139554 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 91401170328 in words is "ninety-one billion, four hundred one million, one hundred seventy thousand, three hundred twenty-eight".