28155933955182 has 32 divisors (see below), whose sum is σ = 61436459614464. Its totient is φ = 8531360784000.

The previous prime is 28155933955069. The next prime is 28155933955187.

28155933955182 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28155933955187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17743819 + ... + 19265382.

It is an arithmetic number, because the mean of its divisors is an integer number (1919889362952).

Almost surely, 2^{28155933955182} is an apocalyptic number.

28155933955182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28155933955182 is an abundant number, since it is smaller than the sum of its proper divisors (33280525659282).

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

28155933955182 is a wasteful number, since it uses less digits than its factorization.

28155933955182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37020744.

The product of its digits is 116640000, while the sum is 66.

The spelling of 28155933955182 in words is "twenty-eight trillion, one hundred fifty-five billion, nine hundred thirty-three million, nine hundred fifty-five thousand, one hundred eighty-two".