1276077829940 has 24 divisors (see below), whose sum is σ = 2796274897920. Its totient is φ = 488238473888.

The previous prime is 1276077829913. The next prime is 1276077829973. The reversal of 1276077829940 is 499287706721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1387040660 + ... + 1387041579.

It is an arithmetic number, because the mean of its divisors is an integer number (116511454080).

Almost surely, 2^{1276077829940} is an apocalyptic number.

1276077829940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1276077829940 is an abundant number, since it is smaller than the sum of its proper divisors (1520197067980).

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

1276077829940 is a wasteful number, since it uses less digits than its factorization.

1276077829940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774082271 (or 2774082269 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 1276077829940 in words is "one trillion, two hundred seventy-six billion, seventy-seven million, eight hundred twenty-nine thousand, nine hundred forty".