380189002821 has 4 divisors (see below), whose sum is σ = 506918670432. Its totient is φ = 253459335212.

The previous prime is 380189002799. The next prime is 380189002841. The reversal of 380189002821 is 128200981083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 380189002821 - 2⁶ = 380189002757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380189002841) 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, 63364833801 + ... + 63364833806.

It is an arithmetic number, because the mean of its divisors is an integer number (126729667608).

Almost surely, 2^380189002821 is an apocalyptic number.

It is an amenable number.

380189002821 is a deficient number, since it is larger than the sum of its proper divisors (126729667611).

380189002821 is a wasteful number, since it uses less digits than its factorization.

380189002821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126729667610.

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 380189002821 in words is "three hundred eighty billion, one hundred eighty-nine million, two thousand, eight hundred twenty-one".