1276541225057 has 32 divisors (see below), whose sum is σ = 1520747723520. Its totient is φ = 1048377738240.

The previous prime is 1276541225021. The next prime is 1276541225077. The reversal of 1276541225057 is 7505221456721.

It is a happy number.

It is not a de Polignac number, because 1276541225057 - 2¹⁴ = 1276541208673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1276541225077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107928578 + ... + 107940404.

It is an arithmetic number, because the mean of its divisors is an integer number (47523366360).

Almost surely, 2^{1276541225057} is an apocalyptic number.

It is an amenable number.

1276541225057 is a deficient number, since it is larger than the sum of its proper divisors (244206498463).

1276541225057 is a wasteful number, since it uses less digits than its factorization.

1276541225057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881.

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 1276541225057 in words is "one trillion, two hundred seventy-six billion, five hundred forty-one million, two hundred twenty-five thousand, fifty-seven".