2117455734 has 16 divisors (see below), whose sum is σ = 4244697072. Its totient is φ = 704187648.

The previous prime is 2117455727. The next prime is 2117455763. The reversal of 2117455734 is 4375547112.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2117455692 and 2117455701.

It is a congruent 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, 404919 + ... + 410114.

It is an arithmetic number, because the mean of its divisors is an integer number (265293567).

Almost surely, 2^2117455734 is an apocalyptic number.

2117455734 is an abundant number, since it is smaller than the sum of its proper divisors (2127241338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2117455734 is a wasteful number, since it uses less digits than its factorization.

2117455734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815471.

The product of its digits is 117600, while the sum is 39.

The square root of 2117455734 is about 46015.8204751366. The cubic root of 2117455734 is about 1284.1175455999.

The spelling of 2117455734 in words is "two billion, one hundred seventeen million, four hundred fifty-five thousand, seven hundred thirty-four".