7940213731189 has 2 divisors, whose sum is σ = 7940213731190. Its totient is φ = 7940213731188.

The previous prime is 7940213731159. The next prime is 7940213731199. The reversal of 7940213731189 is 9811373120497.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5352513602500 + 2587700128689 = 2313550^2 + 1608633^2 .

It is a cyclic number.

It is not a de Polignac number, because 7940213731189 - 2¹⁵ = 7940213698421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7940213731159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970106865594 + 3970106865595.

It is an arithmetic number, because the mean of its divisors is an integer number (3970106865595).

Almost surely, 2^{7940213731189} is an apocalyptic number.

It is an amenable number.

7940213731189 is a deficient number, since it is larger than the sum of its proper divisors (1).

7940213731189 is an equidigital number, since it uses as much as digits as its factorization.

7940213731189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 7940213731189 in words is "seven trillion, nine hundred forty billion, two hundred thirteen million, seven hundred thirty-one thousand, one hundred eighty-nine".