7876369121 has 2 divisors, whose sum is σ = 7876369122. Its totient is φ = 7876369120.

The previous prime is 7876369097. The next prime is 7876369133. The reversal of 7876369121 is 1219636787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7127580625 + 748788496 = 84425^2 + 27364^2 .

It is a cyclic number.

It is not a de Polignac number, because 7876369121 - 2²⁶ = 7809260257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7876369121.

It is not a weakly prime, because it can be changed into another prime (7870369121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3938184560 + 3938184561.

It is an arithmetic number, because the mean of its divisors is an integer number (3938184561).

Almost surely, 2^7876369121 is an apocalyptic number.

It is an amenable number.

7876369121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7876369121 is an equidigital number, since it uses as much as digits as its factorization.

7876369121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 7876369121 is about 88748.9105341581. The cubic root of 7876369121 is about 1989.6438948498.

The spelling of 7876369121 in words is "seven billion, eight hundred seventy-six million, three hundred sixty-nine thousand, one hundred twenty-one".