3854388142079 has 4 divisors (see below), whose sum is σ = 3857524341960. Its totient is φ = 3851251942200.

The previous prime is 3854388142001. The next prime is 3854388142127. The reversal of 3854388142079 is 9702418834583.

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 3854388142079 - 2⁸ = 3854388141823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3854388142379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1568098097 + ... + 1568100554.

It is an arithmetic number, because the mean of its divisors is an integer number (964381085490).

Almost surely, 2^{3854388142079} is an apocalyptic number.

3854388142079 is a deficient number, since it is larger than the sum of its proper divisors (3136199881).

3854388142079 is a wasteful number, since it uses less digits than its factorization.

3854388142079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136199880.

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 3854388142079 in words is "three trillion, eight hundred fifty-four billion, three hundred eighty-eight million, one hundred forty-two thousand, seventy-nine".