1264026401375 has 16 divisors (see below), whose sum is σ = 1646092124352. Its totient is φ = 967254983200.

The previous prime is 1264026401317. The next prime is 1264026401387. The reversal of 1264026401375 is 5731046204621.

It is not a de Polignac number, because 1264026401375 - 2¹⁸ = 1264026139231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219827804 + ... + 219833553.

It is an arithmetic number, because the mean of its divisors is an integer number (102880757772).

Almost surely, 2^{1264026401375} is an apocalyptic number.

1264026401375 is a deficient number, since it is larger than the sum of its proper divisors (382065722977).

1264026401375 is an equidigital number, since it uses as much as digits as its factorization.

1264026401375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439661395 (or 439661385 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 1264026401375 in words is "one trillion, two hundred sixty-four billion, twenty-six million, four hundred one thousand, three hundred seventy-five".