1270799851 has 2 divisors, whose sum is σ = 1270799852. Its totient is φ = 1270799850.

The previous prime is 1270799839. The next prime is 1270799863. The reversal of 1270799851 is 1589970721.

It is a balanced prime because it is at equal distance from previous prime (1270799839) and next prime (1270799863).

It is an emirp because it is prime and its reverse (1589970721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1270799851 - 2¹³ = 1270791659 is a prime.

It is a super-2 number, since 2×1270799851² = 3229864522603244402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1270799795 and 1270799804.

It is not a weakly prime, because it can be changed into another prime (1270799051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635399925 + 635399926.

It is an arithmetic number, because the mean of its divisors is an integer number (635399926).

Almost surely, 2^1270799851 is an apocalyptic number.

1270799851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270799851 is an equidigital number, since it uses as much as digits as its factorization.

1270799851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 49.

The square root of 1270799851 is about 35648.2797761687. The cubic root of 1270799851 is about 1083.1594300947.

The spelling of 1270799851 in words is "one billion, two hundred seventy million, seven hundred ninety-nine thousand, eight hundred fifty-one".