1264133236625 has 32 divisors (see below), whose sum is σ = 1909074915072. Its totient is φ = 815843961600.

The previous prime is 1264133236517. The next prime is 1264133236649. The reversal of 1264133236625 is 5266323314621.

It is a happy number.

It is not a de Polignac number, because 1264133236625 - 2²⁴ = 1264116459409 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 42476999 + ... + 42506748.

It is an arithmetic number, because the mean of its divisors is an integer number (59658591096).

Almost surely, 2^{1264133236625} is an apocalyptic number.

It is an amenable number.

1264133236625 is a deficient number, since it is larger than the sum of its proper divisors (644941678447).

1264133236625 is an equidigital number, since it uses as much as digits as its factorization.

1264133236625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84983786 (or 84983776 counting only the distinct ones).

The product of its digits is 933120, while the sum is 44.

The spelling of 1264133236625 in words is "one trillion, two hundred sixty-four billion, one hundred thirty-three million, two hundred thirty-six thousand, six hundred twenty-five".