91188148014 has 48 divisors (see below), whose sum is σ = 202022982720. Its totient is φ = 29713210560.

The previous prime is 91188147989. The next prime is 91188148057. The reversal of 91188148014 is 41084188119.

91188148014 is a `hidden beast` number, since 91 + 1 + 8 + 81 + 480 + 1 + 4 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636324 + ... + 766344.

It is an arithmetic number, because the mean of its divisors is an integer number (4208812140).

Almost surely, 2^91188148014 is an apocalyptic number.

91188148014 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

91188148014 is an abundant number, since it is smaller than the sum of its proper divisors (110834834706).

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

91188148014 is a wasteful number, since it uses less digits than its factorization.

91188148014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130905 (or 130902 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 45.

The spelling of 91188148014 in words is "ninety-one billion, one hundred eighty-eight million, one hundred forty-eight thousand, fourteen".