1263146850636 has 24 divisors (see below), whose sum is σ = 3215282892864. Its totient is φ = 382771772880.

The previous prime is 1263146850607. The next prime is 1263146850659. The reversal of 1263146850636 is 6360586413621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4784647030 + ... + 4784647293.

It is an arithmetic number, because the mean of its divisors is an integer number (133970120536).

Almost surely, 2^{1263146850636} is an apocalyptic number.

It is an amenable number.

1263146850636 is an abundant number, since it is smaller than the sum of its proper divisors (1952136042228).

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

1263146850636 is a wasteful number, since it uses less digits than its factorization.

1263146850636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9569294341 (or 9569294339 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 1263146850636 in words is "one trillion, two hundred sixty-three billion, one hundred forty-six million, eight hundred fifty thousand, six hundred thirty-six".