7838346976139 has 2 divisors, whose sum is σ = 7838346976140. Its totient is φ = 7838346976138.

The previous prime is 7838346976123. The next prime is 7838346976253. The reversal of 7838346976139 is 9316796438387.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7838346976139 - 2⁴ = 7838346976123 is a prime.

It is a super-2 number, since 2×7838346976139² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7838346976039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3919173488069 + 3919173488070.

It is an arithmetic number, because the mean of its divisors is an integer number (3919173488070).

Almost surely, 2^{7838346976139} is an apocalyptic number.

7838346976139 is a deficient number, since it is larger than the sum of its proper divisors (1).

7838346976139 is an equidigital number, since it uses as much as digits as its factorization.

7838346976139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987614208, while the sum is 74.

The spelling of 7838346976139 in words is "seven trillion, eight hundred thirty-eight billion, three hundred forty-six million, nine hundred seventy-six thousand, one hundred thirty-nine".