1438923137792 has 36 divisors (see below), whose sum is σ = 3282543412176. Its totient is φ = 616681344000.

The previous prime is 1438923137777. The next prime is 1438923137833. The reversal of 1438923137792 is 2977313298341.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401483459 + ... + 401487042.

Almost surely, 2^{1438923137792} is an apocalyptic number.

It is an amenable number.

1438923137792 is an abundant number, since it is smaller than the sum of its proper divisors (1843620274384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1438923137792 is an frugal number, since it uses more digits than its factorization.

1438923137792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802970524 (or 802970510 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 59.

The spelling of 1438923137792 in words is "one trillion, four hundred thirty-eight billion, nine hundred twenty-three million, one hundred thirty-seven thousand, seven hundred ninety-two".