7139428514 has 8 divisors (see below), whose sum is σ = 10725851628. Its totient is φ = 3564144640.

The previous prime is 7139428487. The next prime is 7139428553. The reversal of 7139428514 is 4158249317.

It can be written as a sum of positive squares in 2 ways, for example, as 4865760025 + 2273668489 = 69755^2 + 47683^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783207 + ... + 2785770.

Almost surely, 2^7139428514 is an apocalyptic number.

7139428514 is a deficient number, since it is larger than the sum of its proper divisors (3586423114).

7139428514 is a wasteful number, since it uses less digits than its factorization.

7139428514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569620.

The product of its digits is 241920, while the sum is 44.

The square root of 7139428514 is about 84495.1389962760. The cubic root of 7139428514 is about 1925.5485939905.

The spelling of 7139428514 in words is "seven billion, one hundred thirty-nine million, four hundred twenty-eight thousand, five hundred fourteen".