2669742145 has 8 divisors (see below), whose sum is σ = 3661360704. Its totient is φ = 1830680304.

The previous prime is 2669742143. The next prime is 2669742151. The reversal of 2669742145 is 5412479662.

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 2669742145 - 2¹ = 2669742143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2669742095 and 2669742104.

It is not an unprimeable number, because it can be changed into a prime (2669742143) 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, 38139139 + ... + 38139208.

It is an arithmetic number, because the mean of its divisors is an integer number (457670088).

Almost surely, 2^2669742145 is an apocalyptic number.

It is an amenable number.

2669742145 is a deficient number, since it is larger than the sum of its proper divisors (991618559).

2669742145 is an equidigital number, since it uses as much as digits as its factorization.

2669742145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76278359.

The product of its digits is 725760, while the sum is 46.

The square root of 2669742145 is about 51669.5475594668. The cubic root of 2669742145 is about 1387.2554482827.

The spelling of 2669742145 in words is "two billion, six hundred sixty-nine million, seven hundred forty-two thousand, one hundred forty-five".