1263983935252 has 24 divisors (see below), whose sum is σ = 2218143087720. Its totient is φ = 630230814720.

The previous prime is 1263983935241. The next prime is 1263983935307. The reversal of 1263983935252 is 2525393893621.

It can be written as a sum of positive squares in 4 ways, for example, as 190265205636 + 1073718729616 = 436194^2 + 1036204^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2222752 + ... + 2732872.

It is an arithmetic number, because the mean of its divisors is an integer number (92422628655).

Almost surely, 2^{1263983935252} is an apocalyptic number.

It is an amenable number.

1263983935252 is a deficient number, since it is larger than the sum of its proper divisors (954159152468).

1263983935252 is a wasteful number, since it uses less digits than its factorization.

1263983935252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511851 (or 511849 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 58.

The spelling of 1263983935252 in words is "one trillion, two hundred sixty-three billion, nine hundred eighty-three million, nine hundred thirty-five thousand, two hundred fifty-two".