91548397701 has 6 divisors (see below), whose sum is σ = 132236574470. Its totient is φ = 61032265128.

The previous prime is 91548397673. The next prime is 91548397723. The reversal of 91548397701 is 10779384519.

It is a happy number.

91548397701 is a `hidden beast` number, since 9 + 1 + 5 + 483 + 97 + 70 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 89356753476 + 2191644225 = 298926^2 + 46815^2 .

It is not a de Polignac number, because 91548397701 - 2⁷ = 91548397573 is a prime.

It is a super-3 number, since 3×91548397701³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91548397201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5086022086 + ... + 5086022103.

Almost surely, 2^91548397701 is an apocalyptic number.

It is an amenable number.

91548397701 is a deficient number, since it is larger than the sum of its proper divisors (40688176769).

91548397701 is a wasteful number, since it uses less digits than its factorization.

91548397701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10172044195 (or 10172044192 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 91548397701 in words is "ninety-one billion, five hundred forty-eight million, three hundred ninety-seven thousand, seven hundred one".