1276463249600 has 672 divisors, whose sum is σ = 4013850240000. Its totient is φ = 396069273600.

The previous prime is 1276463249599. The next prime is 1276463249609. The reversal of 1276463249600 is 69423646721.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (1276463249609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2130990101 + ... + 2130990699.

Almost surely, 2^{1276463249600} is an apocalyptic number.

1276463249600 is a gapful number since it is divisible by the number (10) 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 1276463249600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2006925120000).

1276463249600 is an abundant number, since it is smaller than the sum of its proper divisors (2737386990400).

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

1276463249600 is a wasteful number, since it uses less digits than its factorization.

1276463249600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 1276463249600 in words is "one trillion, two hundred seventy-six billion, four hundred sixty-three million, two hundred forty-nine thousand, six hundred".