1254253763651 has 8 divisors (see below), whose sum is σ = 1468394650464. Its totient is φ = 1048853321280.

The previous prime is 1254253763617. The next prime is 1254253763723. The reversal of 1254253763651 is 1563673524521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1254253763651 - 2³⁸ = 979375856707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1254253763651.

It is not an unprimeable number, because it can be changed into a prime (1254253763051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185110800 + ... + 2185111373.

It is an arithmetic number, because the mean of its divisors is an integer number (183549331308).

Almost surely, 2^{1254253763651} is an apocalyptic number.

1254253763651 is a deficient number, since it is larger than the sum of its proper divisors (214140886813).

1254253763651 is an equidigital number, since it uses as much as digits as its factorization.

1254253763651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370222221.

The product of its digits is 4536000, while the sum is 50.

The spelling of 1254253763651 in words is "one trillion, two hundred fifty-four billion, two hundred fifty-three million, seven hundred sixty-three thousand, six hundred fifty-one".