2143188767678 has 32 divisors (see below), whose sum is σ = 3792672749568. Its totient is φ = 888852592800.

The previous prime is 2143188767677. The next prime is 2143188767711. The reversal of 2143188767678 is 8767678813412.

It is a super-2 number, since 2×2143188767678² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143188767677) 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, 20023901 + ... + 20130647.

It is an arithmetic number, because the mean of its divisors is an integer number (118521023424).

Almost surely, 2^{2143188767678} is an apocalyptic number.

2143188767678 is a deficient number, since it is larger than the sum of its proper divisors (1649483981890).

2143188767678 is a wasteful number, since it uses less digits than its factorization.

2143188767678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153048.

The product of its digits is 151732224, while the sum is 68.

The spelling of 2143188767678 in words is "two trillion, one hundred forty-three billion, one hundred eighty-eight million, seven hundred sixty-seven thousand, six hundred seventy-eight".