91420548448 has 12 divisors (see below), whose sum is σ = 179984204820. Its totient is φ = 45710274208.

The previous prime is 91420548413. The next prime is 91420548463. The reversal of 91420548448 is 84484502419.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1428446038 + ... + 1428446101.

It is an arithmetic number, because the mean of its divisors is an integer number (14998683735).

Almost surely, 2^91420548448 is an apocalyptic number.

It is an amenable number.

91420548448 is a deficient number, since it is larger than the sum of its proper divisors (88563656372).

91420548448 is a wasteful number, since it uses less digits than its factorization.

91420548448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856892149 (or 2856892141 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 91420548448 in words is "ninety-one billion, four hundred twenty million, five hundred forty-eight thousand, four hundred forty-eight".