42827398155 has 24 divisors (see below), whose sum is σ = 78600873312. Its totient is φ = 21497673984.

The previous prime is 42827398127. The next prime is 42827398171. The reversal of 42827398155 is 55189372824.

It is not a de Polignac number, because 42827398155 - 2⁵ = 42827398123 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27990999 + ... + 27992528.

It is an arithmetic number, because the mean of its divisors is an integer number (3275036388).

Almost surely, 2^42827398155 is an apocalyptic number.

42827398155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42827398155 is a deficient number, since it is larger than the sum of its proper divisors (35773475157).

42827398155 is a wasteful number, since it uses less digits than its factorization.

42827398155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55983555 (or 55983552 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 42827398155 in words is "forty-two billion, eight hundred twenty-seven million, three hundred ninety-eight thousand, one hundred fifty-five".