1270726823 has 2 divisors, whose sum is σ = 1270726824. Its totient is φ = 1270726822.

The previous prime is 1270726819. The next prime is 1270726867. The reversal of 1270726823 is 3286270721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1270726823 - 2² = 1270726819 is a prime.

It is a super-2 number, since 2×1270726823² = 3229493317383346658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270726423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635363411 + 635363412.

It is an arithmetic number, because the mean of its divisors is an integer number (635363412).

Almost surely, 2^1270726823 is an apocalyptic number.

1270726823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270726823 is an equidigital number, since it uses as much as digits as its factorization.

1270726823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1270726823 is about 35647.2554764038. The cubic root of 1270726823 is about 1083.1386813560.

The spelling of 1270726823 in words is "one billion, two hundred seventy million, seven hundred twenty-six thousand, eight hundred twenty-three".