2391878160005 has 8 divisors (see below), whose sum is σ = 2870269687032. Its totient is φ = 1913491931328.

The previous prime is 2391878159899. The next prime is 2391878160029. The reversal of 2391878160005 is 5000618781932.

It can be written as a sum of positive squares in 4 ways, for example, as 460842753316 + 1931035406689 = 678854^2 + 1389617^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2391878160005 - 2¹⁸ = 2391877897861 is a prime.

It is a super-2 number, since 2×2391878160005² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 252542 + ... + 2201711.

It is an arithmetic number, because the mean of its divisors is an integer number (358783710879).

Almost surely, 2^{2391878160005} is an apocalyptic number.

It is an amenable number.

2391878160005 is a deficient number, since it is larger than the sum of its proper divisors (478391527027).

2391878160005 is a wasteful number, since it uses less digits than its factorization.

2391878160005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649175.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 2391878160005 in words is "two trillion, three hundred ninety-one billion, eight hundred seventy-eight million, one hundred sixty thousand, five".