1249735243952 has 40 divisors (see below), whose sum is σ = 2607908906064. Its totient is φ = 576737121024.

The previous prime is 1249735243901. The next prime is 1249735243957. The reversal of 1249735243952 is 2593425379421.

It is not an unprimeable number, because it can be changed into a prime (1249735243957) 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, 1580483 + ... + 2235485.

Almost surely, 2^{1249735243952} is an apocalyptic number.

It is an amenable number.

1249735243952 is an abundant number, since it is smaller than the sum of its proper divisors (1358173662112).

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

1249735243952 is a wasteful number, since it uses less digits than its factorization.

1249735243952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664197 (or 664191 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 56.

The spelling of 1249735243952 in words is "one trillion, two hundred forty-nine billion, seven hundred thirty-five million, two hundred forty-three thousand, nine hundred fifty-two".