1256950070039 has 2 divisors, whose sum is σ = 1256950070040. Its totient is φ = 1256950070038.

The previous prime is 1256950069967. The next prime is 1256950070087. The reversal of 1256950070039 is 9300700596521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1256950070039 - 2²⁰ = 1256949021463 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1256950069975 and 1256950070002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1256950070239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628475035019 + 628475035020.

It is an arithmetic number, because the mean of its divisors is an integer number (628475035020).

Almost surely, 2^{1256950070039} is an apocalyptic number.

1256950070039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1256950070039 is an equidigital number, since it uses as much as digits as its factorization.

1256950070039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 510300, while the sum is 47.

The spelling of 1256950070039 in words is "one trillion, two hundred fifty-six billion, nine hundred fifty million, seventy thousand, thirty-nine".