1389142079194 has 8 divisors (see below), whose sum is σ = 2093057124480. Its totient is φ = 691456371036.

The previous prime is 1389142079183. The next prime is 1389142079251. The reversal of 1389142079194 is 4919702419831.

It is a happy number.

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

It is a super-3 number, since 3×1389142079194³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557333724 + ... + 1557334615.

It is an arithmetic number, because the mean of its divisors is an integer number (261632140560).

Almost surely, 2^{1389142079194} is an apocalyptic number.

1389142079194 is a deficient number, since it is larger than the sum of its proper divisors (703915045286).

1389142079194 is a wasteful number, since it uses less digits than its factorization.

1389142079194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114668564.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 1389142079194 in words is "one trillion, three hundred eighty-nine billion, one hundred forty-two million, seventy-nine thousand, one hundred ninety-four".