7182749045 has 4 divisors (see below), whose sum is σ = 8619298860. Its totient is φ = 5746199232.

The previous prime is 7182748943. The next prime is 7182749047. The reversal of 7182749045 is 5409472817.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3422484004 + 3760265041 = 58502^2 + 61321^2 .

It is a cyclic number.

It is not a de Polignac number, because 7182749045 - 2²⁴ = 7165971829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7182749047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718274900 + ... + 718274909.

It is an arithmetic number, because the mean of its divisors is an integer number (2154824715).

Almost surely, 2^7182749045 is an apocalyptic number.

It is an amenable number.

7182749045 is a deficient number, since it is larger than the sum of its proper divisors (1436549815).

7182749045 is a wasteful number, since it uses less digits than its factorization.

7182749045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436549814.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 7182749045 is about 84751.1005533261. The cubic root of 7182749045 is about 1929.4353494190.

The spelling of 7182749045 in words is "seven billion, one hundred eighty-two million, seven hundred forty-nine thousand, forty-five".