2188906004505 has 32 divisors (see below), whose sum is σ = 3845938203648. Its totient is φ = 1054259352000.

The previous prime is 2188906004479. The next prime is 2188906004531. The reversal of 2188906004505 is 5054006098812.

It is an interprime number because it is at equal distance from previous prime (2188906004479) and next prime (2188906004531).

It is not a de Polignac number, because 2188906004505 - 2⁵ = 2188906004473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43902559 + ... + 43952388.

It is an arithmetic number, because the mean of its divisors is an integer number (120185568864).

Almost surely, 2^{2188906004505} is an apocalyptic number.

It is an amenable number.

2188906004505 is a deficient number, since it is larger than the sum of its proper divisors (1657032199143).

2188906004505 is a wasteful number, since it uses less digits than its factorization.

2188906004505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87855117.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 2188906004505 in words is "two trillion, one hundred eighty-eight billion, nine hundred six million, four thousand, five hundred five".