1388453044738 has 16 divisors (see below), whose sum is σ = 2205324291744. Its totient is φ = 653349916480.

The previous prime is 1388453044729. The next prime is 1388453044747. The reversal of 1388453044738 is 8374403548831.

It is an interprime number because it is at equal distance from previous prime (1388453044729) and next prime (1388453044747).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671368 + ... + 1796563.

It is an arithmetic number, because the mean of its divisors is an integer number (137832768234).

Almost surely, 2^{1388453044738} is an apocalyptic number.

1388453044738 is a deficient number, since it is larger than the sum of its proper divisors (816871247006).

1388453044738 is a wasteful number, since it uses less digits than its factorization.

1388453044738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484497.

The product of its (nonzero) digits is 30965760, while the sum is 58.

The spelling of 1388453044738 in words is "one trillion, three hundred eighty-eight billion, four hundred fifty-three million, forty-four thousand, seven hundred thirty-eight".