1263882145952 has 12 divisors (see below), whose sum is σ = 2488267974906. Its totient is φ = 631941072960.

The previous prime is 1263882145949. The next prime is 1263882145961. The reversal of 1263882145952 is 2595412883621.

It can be written as a sum of positive squares in only one way, i.e., 802020549136 + 461861596816 = 895556^2 + 679604^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19748158499 + ... + 19748158562.

Almost surely, 2^{1263882145952} is an apocalyptic number.

It is an amenable number.

1263882145952 is a deficient number, since it is larger than the sum of its proper divisors (1224385828954).

1263882145952 is an equidigital number, since it uses as much as digits as its factorization.

1263882145952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39496317071 (or 39496317063 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 56.

The spelling of 1263882145952 in words is "one trillion, two hundred sixty-three billion, eight hundred eighty-two million, one hundred forty-five thousand, nine hundred fifty-two".