7142748689 has 8 divisors (see below), whose sum is σ = 7161917952. Its totient is φ = 7123596480.

The previous prime is 7142748677. The next prime is 7142748709. The reversal of 7142748689 is 9868472417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7142748689 is a prime.

It is a super-2 number, since 2×7142748689² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142748629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1442552 + ... + 1447494.

It is an arithmetic number, because the mean of its divisors is an integer number (895239744).

Almost surely, 2^7142748689 is an apocalyptic number.

It is an amenable number.

7142748689 is a deficient number, since it is larger than the sum of its proper divisors (19169263).

7142748689 is a wasteful number, since it uses less digits than its factorization.

7142748689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527.

The product of its digits is 5419008, while the sum is 56.

The square root of 7142748689 is about 84514.7838487445. The cubic root of 7142748689 is about 1925.8470383970.

The spelling of 7142748689 in words is "seven billion, one hundred forty-two million, seven hundred forty-eight thousand, six hundred eighty-nine".