1264635255453 has 64 divisors (see below), whose sum is σ = 1863577497600. Its totient is φ = 759727745280.

The previous prime is 1264635255451. The next prime is 1264635255557. The reversal of 1264635255453 is 3545525364621.

It is not a de Polignac number, because 1264635255453 - 2¹ = 1264635255451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1264635255396 and 1264635255405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264635255451) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 31993900 + ... + 32033402.

It is an arithmetic number, because the mean of its divisors is an integer number (29118398400).

Almost surely, 2^{1264635255453} is an apocalyptic number.

It is an amenable number.

1264635255453 is a deficient number, since it is larger than the sum of its proper divisors (598942242147).

1264635255453 is a wasteful number, since it uses less digits than its factorization.

1264635255453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39842.

The product of its digits is 12960000, while the sum is 51.

The spelling of 1264635255453 in words is "one trillion, two hundred sixty-four billion, six hundred thirty-five million, two hundred fifty-five thousand, four hundred fifty-three".