91541619151 has 4 divisors (see below), whose sum is σ = 91542297904. Its totient is φ = 91540940400.

The previous prime is 91541619139. The next prime is 91541619199. The reversal of 91541619151 is 15191614519.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 91541619151 - 2¹³ = 91541610959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91541619098 and 91541619107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91541619121) 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 3 ways as a sum of consecutive naturals, for example, 60915 + ... + 432196.

It is an arithmetic number, because the mean of its divisors is an integer number (22885574476).

Almost surely, 2^91541619151 is an apocalyptic number.

91541619151 is a deficient number, since it is larger than the sum of its proper divisors (678753).

91541619151 is a wasteful number, since it uses less digits than its factorization.

91541619151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678752.

The product of its digits is 48600, while the sum is 43.

The spelling of 91541619151 in words is "ninety-one billion, five hundred forty-one million, six hundred nineteen thousand, one hundred fifty-one".