1263876318648 has 32 divisors (see below), whose sum is σ = 3510767552400. Its totient is φ = 421292106144.

The previous prime is 1263876318643. The next prime is 1263876318659. The reversal of 1263876318648 is 8468136783621.

1263876318648 is a `hidden beast` number, since 12 + 6 + 387 + 63 + 186 + 4 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263876318643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2925639411 + ... + 2925639842.

Almost surely, 2^{1263876318648} is an apocalyptic number.

1263876318648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1263876318648 is an abundant number, since it is smaller than the sum of its proper divisors (2246891233752).

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

1263876318648 is a wasteful number, since it uses less digits than its factorization.

1263876318648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851279268 (or 5851279258 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 1263876318648 in words is "one trillion, two hundred sixty-three billion, eight hundred seventy-six million, three hundred eighteen thousand, six hundred forty-eight".