1276082542440 has 96 divisors (see below), whose sum is σ = 4147831682280. Its totient is φ = 340242448896.

The previous prime is 1276082542351. The next prime is 1276082542447. The reversal of 1276082542440 is 442452806721.

1276082542440 is a `hidden beast` number, since 1 + 2 + 7 + 60 + 8 + 2 + 542 + 4 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1254081940164 + 22000602276 = 1119858^2 + 148326^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1276082542447) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2454682 + ... + 2928758.

Almost surely, 2^{1276082542440} is an apocalyptic number.

1276082542440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1276082542440 is an abundant number, since it is smaller than the sum of its proper divisors (2871749139840).

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

1276082542440 is a wasteful number, since it uses less digits than its factorization.

1276082542440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481571 (or 481564 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 1276082542440 in words is "one trillion, two hundred seventy-six billion, eighty-two million, five hundred forty-two thousand, four hundred forty".