380143155821 has 8 divisors (see below), whose sum is σ = 446601749664. Its totient is φ = 319001249520.

The previous prime is 380143155817. The next prime is 380143155869. The reversal of 380143155821 is 128551341083.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 380143155821 - 2² = 380143155817 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 (380143151821) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1329171731 + ... + 1329172016.

It is an arithmetic number, because the mean of its divisors is an integer number (55825218708).

Almost surely, 2^380143155821 is an apocalyptic number.

It is an amenable number.

380143155821 is a deficient number, since it is larger than the sum of its proper divisors (66458593843).

380143155821 is a wasteful number, since it uses less digits than its factorization.

380143155821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658343771.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 380143155821 in words is "three hundred eighty billion, one hundred forty-three million, one hundred fifty-five thousand, eight hundred twenty-one".