7139984437 has 2 divisors, whose sum is σ = 7139984438. Its totient is φ = 7139984436.

The previous prime is 7139984419. The next prime is 7139984459. The reversal of 7139984437 is 7344899317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3739811716 + 3400172721 = 61154^2 + 58311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7139984437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7139984477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569992218 + 3569992219.

It is an arithmetic number, because the mean of its divisors is an integer number (3569992219).

Almost surely, 2^7139984437 is an apocalyptic number.

It is an amenable number.

7139984437 is a deficient number, since it is larger than the sum of its proper divisors (1).

7139984437 is an equidigital number, since it uses as much as digits as its factorization.

7139984437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 55.

The square root of 7139984437 is about 84498.4286066907. The cubic root of 7139984437 is about 1925.5985713318.

The spelling of 7139984437 in words is "seven billion, one hundred thirty-nine million, nine hundred eighty-four thousand, four hundred thirty-seven".