2047820517457 has 16 divisors (see below), whose sum is σ = 2411573008320. Its totient is φ = 1714349419200.

The previous prime is 2047820517451. The next prime is 2047820517461. The reversal of 2047820517457 is 7547150287402.

It is a happy number.

It is not a de Polignac number, because 2047820517457 - 2³⁵ = 2013460779089 is a prime.

It is a super-3 number, since 3×2047820517457³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2047820517451) 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, 17028894 + ... + 17148727.

It is an arithmetic number, because the mean of its divisors is an integer number (150723313020).

Almost surely, 2^{2047820517457} is an apocalyptic number.

It is an amenable number.

2047820517457 is a deficient number, since it is larger than the sum of its proper divisors (363752490863).

2047820517457 is a wasteful number, since it uses less digits than its factorization.

2047820517457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34178064.

The product of its (nonzero) digits is 4390400, while the sum is 52.

The spelling of 2047820517457 in words is "two trillion, forty-seven billion, eight hundred twenty million, five hundred seventeen thousand, four hundred fifty-seven".