1388116261394 has 8 divisors (see below), whose sum is σ = 2092042517808. Its totient is φ = 690768755460.

The previous prime is 1388116261387. The next prime is 1388116261417. The reversal of 1388116261394 is 4931626118831.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1644687092 + ... + 1644687935.

It is an arithmetic number, because the mean of its divisors is an integer number (261505314726).

Almost surely, 2^{1388116261394} is an apocalyptic number.

1388116261394 is a deficient number, since it is larger than the sum of its proper divisors (703926256414).

1388116261394 is a wasteful number, since it uses less digits than its factorization.

1388116261394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289375240.

The product of its digits is 1492992, while the sum is 53.

The spelling of 1388116261394 in words is "one trillion, three hundred eighty-eight billion, one hundred sixteen million, two hundred sixty-one thousand, three hundred ninety-four".