7138404430277 has 2 divisors, whose sum is σ = 7138404430278. Its totient is φ = 7138404430276.

The previous prime is 7138404430237. The next prime is 7138404430309. The reversal of 7138404430277 is 7720344048317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6977596212196 + 160808218081 = 2641514^2 + 401009^2 .

It is an emirp because it is prime and its reverse (7720344048317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7138404430277 - 2⁸ = 7138404430021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7138404430217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569202215138 + 3569202215139.

It is an arithmetic number, because the mean of its divisors is an integer number (3569202215139).

Almost surely, 2^{7138404430277} is an apocalyptic number.

It is an amenable number.

7138404430277 is a deficient number, since it is larger than the sum of its proper divisors (1).

7138404430277 is an equidigital number, since it uses as much as digits as its factorization.

7138404430277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3161088, while the sum is 50.

The spelling of 7138404430277 in words is "seven trillion, one hundred thirty-eight billion, four hundred four million, four hundred thirty thousand, two hundred seventy-seven".