1050661026139 has 2 divisors, whose sum is σ = 1050661026140. Its totient is φ = 1050661026138.

The previous prime is 1050661026137. The next prime is 1050661026157. The reversal of 1050661026139 is 9316201660501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1050661026139 - 2¹ = 1050661026137 is a prime.

It is a super-2 number, since 2×1050661026139² (a number of 25 digits) contains 22 as substring.

Together with 1050661026137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1050661026137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525330513069 + 525330513070.

It is an arithmetic number, because the mean of its divisors is an integer number (525330513070).

Almost surely, 2^{1050661026139} is an apocalyptic number.

1050661026139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1050661026139 is an equidigital number, since it uses as much as digits as its factorization.

1050661026139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 1050661026139 in words is "one trillion, fifty billion, six hundred sixty-one million, twenty-six thousand, one hundred thirty-nine".