91393874695201 has 8 divisors (see below), whose sum is σ = 98447380582824. Its totient is φ = 84343684212480.

The previous prime is 91393874695199. The next prime is 91393874695219. The reversal of 91393874695201 is 10259647839319.

It can be written as a sum of positive squares in 4 ways, for example, as 32377693219600 + 59016181475601 = 5690140^2 + 7682199^2 .

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 91393874695201 - 2¹ = 91393874695199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91393874695261) 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, 828793966 + ... + 828904231.

It is an arithmetic number, because the mean of its divisors is an integer number (12305922572853).

It is a 1-persistent number, because it is pandigital, but 2⋅91393874695201 = 182787749390402 is not.

Almost surely, 2^{91393874695201} is an apocalyptic number.

It is an amenable number.

91393874695201 is a deficient number, since it is larger than the sum of its proper divisors (7053505887623).

91393874695201 is a wasteful number, since it uses less digits than its factorization.

91393874695201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657702451.

The product of its (nonzero) digits is 88179840, while the sum is 67.

The spelling of 91393874695201 in words is "ninety-one trillion, three hundred ninety-three billion, eight hundred seventy-four million, six hundred ninety-five thousand, two hundred one".