1264437275243 has 8 divisors (see below), whose sum is σ = 1283373343200. Its totient is φ = 1245627028800.

The previous prime is 1264437275209. The next prime is 1264437275291. The reversal of 1264437275243 is 3425727344621.

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 1264437275243 - 2⁸ = 1264437274987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1264437275191 and 1264437275200.

It is not an unprimeable number, because it can be changed into a prime (1264437275443) 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, 31435130 + ... + 31475327.

It is an arithmetic number, because the mean of its divisors is an integer number (160421667900).

Almost surely, 2^{1264437275243} is an apocalyptic number.

1264437275243 is a deficient number, since it is larger than the sum of its proper divisors (18936067957).

1264437275243 is a wasteful number, since it uses less digits than its factorization.

1264437275243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62910757.

The product of its digits is 6773760, while the sum is 50.

The spelling of 1264437275243 in words is "one trillion, two hundred sixty-four billion, four hundred thirty-seven million, two hundred seventy-five thousand, two hundred forty-three".