2173378744 has 32 divisors (see below), whose sum is σ = 4254768000. Its totient is φ = 1038829792.

The previous prime is 2173378741. The next prime is 2173378751. The reversal of 2173378744 is 4478733712.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 2173378694 and 2173378703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173378741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538767 + ... + 542785.

It is an arithmetic number, because the mean of its divisors is an integer number (132961500).

Almost surely, 2^2173378744 is an apocalyptic number.

It is an amenable number.

2173378744 is a deficient number, since it is larger than the sum of its proper divisors (2081389256).

2173378744 is a wasteful number, since it uses less digits than its factorization.

2173378744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6987 (or 6983 counting only the distinct ones).

The product of its digits is 790272, while the sum is 46.

The square root of 2173378744 is about 46619.5103363388. The cubic root of 2173378744 is about 1295.3241773751.

The spelling of 2173378744 in words is "two billion, one hundred seventy-three million, three hundred seventy-eight thousand, seven hundred forty-four".