7349021639 has 2 divisors, whose sum is σ = 7349021640. Its totient is φ = 7349021638.

The previous prime is 7349021599. The next prime is 7349021677. The reversal of 7349021639 is 9361209437.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7349021639 - 2²⁰ = 7347973063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7349021639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7349021699) 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 as a sum of consecutive naturals, namely, 3674510819 + 3674510820.

It is an arithmetic number, because the mean of its divisors is an integer number (3674510820).

Almost surely, 2^7349021639 is an apocalyptic number.

7349021639 is a deficient number, since it is larger than the sum of its proper divisors (1).

7349021639 is an equidigital number, since it uses as much as digits as its factorization.

7349021639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 7349021639 is about 85726.4348902951. The cubic root of 7349021639 is about 1944.2100125327.

The spelling of 7349021639 in words is "seven billion, three hundred forty-nine million, twenty-one thousand, six hundred thirty-nine".