91051373641 has 8 divisors (see below), whose sum is σ = 91248664320. Its totient is φ = 90854239728.

The previous prime is 91051373629. The next prime is 91051373681. The reversal of 91051373641 is 14637315019.

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 91051373641 - 2³¹ = 88903889993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91051373594 and 91051373603.

It is not an unprimeable number, because it can be changed into a prime (91051373681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163355 + ... + 1239151.

It is an arithmetic number, because the mean of its divisors is an integer number (11406083040).

Almost surely, 2^91051373641 is an apocalyptic number.

It is an amenable number.

91051373641 is a deficient number, since it is larger than the sum of its proper divisors (197290679).

91051373641 is a wasteful number, since it uses less digits than its factorization.

91051373641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78383.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 91051373641 in words is "ninety-one billion, fifty-one million, three hundred seventy-three thousand, six hundred forty-one".