91541619152 has 40 divisors (see below), whose sum is σ = 183248729664. Its totient is φ = 44272295424.

The previous prime is 91541619139. The next prime is 91541619199. The reversal of 91541619152 is 25191614519.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575033 + ... + 716760.

Almost surely, 2^91541619152 is an apocalyptic number.

It is an amenable number.

91541619152 is an abundant number, since it is smaller than the sum of its proper divisors (91707110512).

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

91541619152 is a wasteful number, since it uses less digits than its factorization.

91541619152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291947 (or 1291941 counting only the distinct ones).

The product of its digits is 97200, while the sum is 44.

The spelling of 91541619152 in words is "ninety-one billion, five hundred forty-one million, six hundred nineteen thousand, one hundred fifty-two".