7621139039 has 8 divisors (see below), whose sum is σ = 8040787440. Its totient is φ = 7203344256.

The previous prime is 7621139011. The next prime is 7621139069. The reversal of 7621139039 is 9309311267.

7621139039 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7621139039 - 2¹² = 7621134943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7621138987 and 7621139005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7621139069) 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, 454952 + ... + 471405.

It is an arithmetic number, because the mean of its divisors is an integer number (1005098430).

Almost surely, 2^7621139039 is an apocalyptic number.

7621139039 is a deficient number, since it is larger than the sum of its proper divisors (419648401).

7621139039 is a wasteful number, since it uses less digits than its factorization.

7621139039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926809.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 7621139039 is about 87299.1353851801. The cubic root of 7621139039 is about 1967.9163242695.

The spelling of 7621139039 in words is "seven billion, six hundred twenty-one million, one hundred thirty-nine thousand, thirty-nine".