7613139973 has 2 divisors, whose sum is σ = 7613139974. Its totient is φ = 7613139972.

The previous prime is 7613139967. The next prime is 7613140027. The reversal of 7613139973 is 3799313167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7534587204 + 78552769 = 86802^2 + 8863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7613139973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7613131973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806569986 + 3806569987.

It is an arithmetic number, because the mean of its divisors is an integer number (3806569987).

Almost surely, 2^7613139973 is an apocalyptic number.

It is an amenable number.

7613139973 is a deficient number, since it is larger than the sum of its proper divisors (1).

7613139973 is an equidigital number, since it uses as much as digits as its factorization.

7613139973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 642978, while the sum is 49.

The square root of 7613139973 is about 87253.3092381028. The cubic root of 7613139973 is about 1967.2275819411.

The spelling of 7613139973 in words is "seven billion, six hundred thirteen million, one hundred thirty-nine thousand, nine hundred seventy-three".