1388890029139 has 4 divisors (see below), whose sum is σ = 1388902326280. Its totient is φ = 1388877732000.

The previous prime is 1388890029019. The next prime is 1388890029167. The reversal of 1388890029139 is 9319200988831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1388890029139 - 2⁷ = 1388890029011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1388890029179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5977569 + ... + 6205570.

It is an arithmetic number, because the mean of its divisors is an integer number (347225581570).

Almost surely, 2^{1388890029139} is an apocalyptic number.

1388890029139 is a deficient number, since it is larger than the sum of its proper divisors (12297141).

1388890029139 is a wasteful number, since it uses less digits than its factorization.

1388890029139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12297140.

The product of its (nonzero) digits is 6718464, while the sum is 61.

The spelling of 1388890029139 in words is "one trillion, three hundred eighty-eight billion, eight hundred ninety million, twenty-nine thousand, one hundred thirty-nine".