2027391664505 has 8 divisors (see below), whose sum is σ = 2432880719424. Its totient is φ = 1621906183600.

The previous prime is 2027391664489. The next prime is 2027391664517. The reversal of 2027391664505 is 5054661937202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2027391664505 - 2⁴ = 2027391664489 is a prime.

It is a super-2 number, since 2×2027391664505² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573410 + ... + 2093700.

It is an arithmetic number, because the mean of its divisors is an integer number (304110089928).

Almost surely, 2^{2027391664505} is an apocalyptic number.

It is an amenable number.

2027391664505 is a deficient number, since it is larger than the sum of its proper divisors (405489054919).

2027391664505 is a wasteful number, since it uses less digits than its factorization.

2027391664505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787007.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 2027391664505 in words is "two trillion, twenty-seven billion, three hundred ninety-one million, six hundred sixty-four thousand, five hundred five".