1276126488 has 640 divisors, whose sum is σ = 4976294400. Its totient is φ = 295612416.

The previous prime is 1276126487. The next prime is 1276126493. The reversal of 1276126488 is 8846216721.

1276126488 is a `hidden beast` number, since 1 + 27 + 612 + 6 + 4 + 8 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (258048) is a multiple of the sum of its prime divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276126483) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 19046631 + ... + 19046697.

It is an arithmetic number, because the mean of its divisors is an integer number (7775460).

Almost surely, 2^1276126488 is an apocalyptic number.

1276126488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276126488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2488147200).

1276126488 is an abundant number, since it is smaller than the sum of its proper divisors (3700167912).

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

1276126488 is a wasteful number, since it uses less digits than its factorization.

1276126488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 128 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1276126488 is about 35722.9126472073. The cubic root of 1276126488 is about 1084.6706973498.

The spelling of 1276126488 in words is "one billion, two hundred seventy-six million, one hundred twenty-six thousand, four hundred eighty-eight".