7839459742 has 8 divisors (see below), whose sum is σ = 12164679000. Its totient is φ = 3784566744.

The previous prime is 7839459709. The next prime is 7839459743. The reversal of 7839459742 is 2479549387.

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

It is a super-2 number, since 2×7839459742² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58), and also a Moran number because the ratio is a prime number: 135163099 = 7839459742 / (7 + 8 + 3 + 9 + 4 + 5 + 9 + 7 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7839459743) 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 3 ways as a sum of consecutive naturals, for example, 67581492 + ... + 67581607.

It is an arithmetic number, because the mean of its divisors is an integer number (1520584875).

Almost surely, 2^7839459742 is an apocalyptic number.

7839459742 is a deficient number, since it is larger than the sum of its proper divisors (4325219258).

7839459742 is a wasteful number, since it uses less digits than its factorization.

7839459742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135163130.

The product of its digits is 15240960, while the sum is 58.

The square root of 7839459742 is about 88540.7236360761. The cubic root of 7839459742 is about 1986.5311437377.

The spelling of 7839459742 in words is "seven billion, eight hundred thirty-nine million, four hundred fifty-nine thousand, seven hundred forty-two".