5478154802091 has 48 divisors (see below), whose sum is σ = 8500803966720. Its totient is φ = 3387123025920.

The previous prime is 5478154802077. The next prime is 5478154802111. The reversal of 5478154802091 is 1902084518745.

5478154802091 is a `hidden beast` number, since 5 + 4 + 7 + 8 + 1 + 548 + 0 + 2 + 0 + 91 = 666.

It is not a de Polignac number, because 5478154802091 - 2⁵ = 5478154802059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5478154802591) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12165286 + ... + 12607556.

It is an arithmetic number, because the mean of its divisors is an integer number (177100082640).

Almost surely, 2^{5478154802091} is an apocalyptic number.

5478154802091 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5478154802091 is a deficient number, since it is larger than the sum of its proper divisors (3022649164629).

5478154802091 is a wasteful number, since it uses less digits than its factorization.

5478154802091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443476 (or 443473 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 5478154802091 in words is "five trillion, four hundred seventy-eight billion, one hundred fifty-four million, eight hundred two thousand, ninety-one".