1392358886945 has 8 divisors (see below), whose sum is σ = 1799356100136. Its totient is φ = 1028203485696.

The previous prime is 1392358886921. The next prime is 1392358886993. The reversal of 1392358886945 is 5496888532931.

It can be written as a sum of positive squares in 4 ways, for example, as 79113937984 + 1313244948961 = 281272^2 + 1145969^2 .

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 1392358886945 - 2⁶ = 1392358886881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 10710452912 + ... + 10710453041.

It is an arithmetic number, because the mean of its divisors is an integer number (224919512517).

Almost surely, 2^{1392358886945} is an apocalyptic number.

It is an amenable number.

1392358886945 is a deficient number, since it is larger than the sum of its proper divisors (406997213191).

1392358886945 is a wasteful number, since it uses less digits than its factorization.

1392358886945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420905971.

The product of its digits is 447897600, while the sum is 71.

The spelling of 1392358886945 in words is "one trillion, three hundred ninety-two billion, three hundred fifty-eight million, eight hundred eighty-six thousand, nine hundred forty-five".