1263912647088 has 160 divisors (see below), whose sum is σ = 4019899265536. Its totient is φ = 333231335424.

The previous prime is 1263912647087. The next prime is 1263912647131. The reversal of 1263912647088 is 8807462193621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1263912647087) 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 31 ways as a sum of consecutive naturals, for example, 13875420 + ... + 13966212.

Almost surely, 2^{1263912647088} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263912647088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2009949632768).

1263912647088 is an abundant number, since it is smaller than the sum of its proper divisors (2755986618448).

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

1263912647088 is a wasteful number, since it uses less digits than its factorization.

1263912647088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94011 (or 94005 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 1263912647088 in words is "one trillion, two hundred sixty-three billion, nine hundred twelve million, six hundred forty-seven thousand, eighty-eight".