1276052673 has 64 divisors (see below), whose sum is σ = 2149171200. Its totient is φ = 656631360.

The previous prime is 1276052663. The next prime is 1276052677. The reversal of 1276052673 is 3762506721.

It is not a de Polignac number, because 1276052673 - 2¹³ = 1276044481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1276052677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1936018 + ... + 1936676.

It is an arithmetic number, because the mean of its divisors is an integer number (33580800).

Almost surely, 2^1276052673 is an apocalyptic number.

It is an amenable number.

1276052673 is a deficient number, since it is larger than the sum of its proper divisors (873118527).

1276052673 is a wasteful number, since it uses less digits than its factorization.

1276052673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 1276052673 is about 35721.8794718307. The cubic root of 1276052673 is about 1084.6497834064.

The spelling of 1276052673 in words is "one billion, two hundred seventy-six million, fifty-two thousand, six hundred seventy-three".