215075399054 has 16 divisors (see below), whose sum is σ = 347190184656. Its totient is φ = 99552739200.

The previous prime is 215075399053. The next prime is 215075399101. The reversal of 215075399054 is 450993570512.

215075399054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215075398993 and 215075399011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215075399053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51848312 + ... + 51852459.

It is an arithmetic number, because the mean of its divisors is an integer number (21699386541).

Almost surely, 2^215075399054 is an apocalyptic number.

215075399054 is a deficient number, since it is larger than the sum of its proper divisors (132114785602).

215075399054 is a wasteful number, since it uses less digits than its factorization.

215075399054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103700851.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 215075399054 in words is "two hundred fifteen billion, seventy-five million, three hundred ninety-nine thousand, fifty-four".