1263962796120 has 192 divisors, whose sum is σ = 4174226784000. Its totient is φ = 331624998144.

The previous prime is 1263962796077. The next prime is 1263962796137. The reversal of 1263962796120 is 216972693621.

1263962796120 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 9 + 627 + 9 + 6 + 1 + 2 + 0 = 666.

It is a Cunningham number, because it is equal to 1124261²-1.

It is a super-3 number, since 3×1263962796120³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20205451 + ... + 20267909.

It is an arithmetic number, because the mean of its divisors is an integer number (21740764500).

Almost surely, 2^{1263962796120} is an apocalyptic number.

1263962796120 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 1263962796120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2087113392000).

1263962796120 is an abundant number, since it is smaller than the sum of its proper divisors (2910263987880).

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

1263962796120 is a wasteful number, since it uses less digits than its factorization.

1263962796120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63382 (or 63375 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 1263962796120 in words is "one trillion, two hundred sixty-three billion, nine hundred sixty-two million, seven hundred ninety-six thousand, one hundred twenty".