2145178788023 has 8 divisors (see below), whose sum is σ = 2149937309520. Its totient is φ = 2140420722880.

The previous prime is 2145178788007. The next prime is 2145178788029. The reversal of 2145178788023 is 3208878715412.

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 2145178788023 - 2⁴ = 2145178788007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2145178788023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145178788029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10360808 + ... + 10565826.

It is an arithmetic number, because the mean of its divisors is an integer number (268742163690).

Almost surely, 2^{2145178788023} is an apocalyptic number.

2145178788023 is a deficient number, since it is larger than the sum of its proper divisors (4758521497).

2145178788023 is a wasteful number, since it uses less digits than its factorization.

2145178788023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228177.

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 2145178788023 in words is "two trillion, one hundred forty-five billion, one hundred seventy-eight million, seven hundred eighty-eight thousand, twenty-three".