1276148775051 has 12 divisors (see below), whose sum is σ = 1951756950312. Its totient is φ = 800720799936.

The previous prime is 1276148775047. The next prime is 1276148775091. The reversal of 1276148775051 is 1505778416721.

It is a happy number.

1276148775051 is a `hidden beast` number, since 1 + 2 + 7 + 61 + 4 + 8 + 77 + 505 + 1 = 666.

It is not a de Polignac number, because 1276148775051 - 2² = 1276148775047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1276148775001) 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 in 11 ways as a sum of consecutive naturals, for example, 4170420681 + ... + 4170420986.

It is an arithmetic number, because the mean of its divisors is an integer number (162646412526).

Almost surely, 2^{1276148775051} is an apocalyptic number.

1276148775051 is a deficient number, since it is larger than the sum of its proper divisors (675608175261).

1276148775051 is a wasteful number, since it uses less digits than its factorization.

1276148775051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8340841690 (or 8340841687 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 54.

The spelling of 1276148775051 in words is "one trillion, two hundred seventy-six billion, one hundred forty-eight million, seven hundred seventy-five thousand, fifty-one".