7613131973 has 2 divisors, whose sum is σ = 7613131974. Its totient is φ = 7613131972.

The previous prime is 7613131969. The next prime is 7613131979. The reversal of 7613131973 is 3791313167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5239298689 + 2373833284 = 72383^2 + 48722^2 .

It is a cyclic number.

It is not a de Polignac number, because 7613131973 - 2² = 7613131969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7613131973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7613131979) 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, 3806565986 + 3806565987.

It is an arithmetic number, because the mean of its divisors is an integer number (3806565987).

Almost surely, 2^7613131973 is an apocalyptic number.

It is an amenable number.

7613131973 is a deficient number, since it is larger than the sum of its proper divisors (1).

7613131973 is an equidigital number, since it uses as much as digits as its factorization.

7613131973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442, while the sum is 41.

The square root of 7613131973 is about 87253.2633945573. The cubic root of 7613131973 is about 1967.2268928769.

The spelling of 7613131973 in words is "seven billion, six hundred thirteen million, one hundred thirty-one thousand, nine hundred seventy-three".