1276340838468 has 12 divisors (see below), whose sum is σ = 2978128623120. Its totient is φ = 425446946152.

The previous prime is 1276340838463. The next prime is 1276340838527. The reversal of 1276340838468 is 8648380436721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1276340838463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53180868258 + ... + 53180868281.

It is an arithmetic number, because the mean of its divisors is an integer number (248177385260).

Almost surely, 2^{1276340838468} is an apocalyptic number.

It is an amenable number.

1276340838468 is an abundant number, since it is smaller than the sum of its proper divisors (1701787784652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1276340838468 is a wasteful number, since it uses less digits than its factorization.

1276340838468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106361736546 (or 106361736544 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 60.

The spelling of 1276340838468 in words is "one trillion, two hundred seventy-six billion, three hundred forty million, eight hundred thirty-eight thousand, four hundred sixty-eight".