1245803732452 has 12 divisors (see below), whose sum is σ = 2192336178480. Its totient is φ = 619421967176.

The previous prime is 1245803732237. The next prime is 1245803732489. The reversal of 1245803732452 is 2542373085421.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 869973958 + ... + 869975389.

It is an arithmetic number, because the mean of its divisors is an integer number (182694681540).

Almost surely, 2^{1245803732452} is an apocalyptic number.

It is an amenable number.

1245803732452 is a deficient number, since it is larger than the sum of its proper divisors (946532446028).

1245803732452 is a wasteful number, since it uses less digits than its factorization.

1245803732452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739949530 (or 1739949528 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 1245803732452 in words is "one trillion, two hundred forty-five billion, eight hundred three million, seven hundred thirty-two thousand, four hundred fifty-two".