2143860388858 has 8 divisors (see below), whose sum is σ = 3225057992352. Its totient is φ = 1068841058076.

The previous prime is 2143860388843. The next prime is 2143860388979. The reversal of 2143860388858 is 8588830683412.

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

It is a super-2 number, since 2×2143860388858² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2143860388858.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544567310 + ... + 1544568697.

It is an arithmetic number, because the mean of its divisors is an integer number (403132249044).

Almost surely, 2^{2143860388858} is an apocalyptic number.

2143860388858 is a deficient number, since it is larger than the sum of its proper divisors (1081197603494).

2143860388858 is a wasteful number, since it uses less digits than its factorization.

2143860388858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089136356.

The product of its (nonzero) digits is 70778880, while the sum is 64.

The spelling of 2143860388858 in words is "two trillion, one hundred forty-three billion, eight hundred sixty million, three hundred eighty-eight thousand, eight hundred fifty-eight".