91540049606496 has 192 divisors, whose sum is σ = 279006981120000. Its totient is φ = 29529047560320.

The previous prime is 91540049606429. The next prime is 91540049606497. The reversal of 91540049606496 is 69460694004519.

91540049606496 is a `hidden beast` number, since 9 + 1 + 5 + 40 + 0 + 49 + 60 + 6 + 496 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91540049606497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18927496 + ... + 23266503.

It is an arithmetic number, because the mean of its divisors is an integer number (1453161360000).

Almost surely, 2^{91540049606496} is an apocalyptic number.

91540049606496 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

91540049606496 is an abundant number, since it is smaller than the sum of its proper divisors (187466931513504).

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

91540049606496 is an equidigital number, since it uses as much as digits as its factorization.

91540049606496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42194061 (or 42194035 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 91540049606496 in words is "ninety-one trillion, five hundred forty billion, forty-nine million, six hundred six thousand, four hundred ninety-six".