389872278983 has 4 divisors (see below), whose sum is σ = 425315213448. Its totient is φ = 354429344520.

The previous prime is 389872278941. The next prime is 389872278997.

389872278983 is nontrivially palindromic in base 10.

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 389872278983 - 2¹⁴ = 389872262599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389872278983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389872274983) 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, 17721467216 + ... + 17721467237.

It is an arithmetic number, because the mean of its divisors is an integer number (106328803362).

Almost surely, 2^389872278983 is an apocalyptic number.

389872278983 is a deficient number, since it is larger than the sum of its proper divisors (35442934465).

389872278983 is a wasteful number, since it uses less digits than its factorization.

389872278983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35442934464.

The product of its digits is 585252864, while the sum is 74.

The spelling of 389872278983 in words is "three hundred eighty-nine billion, eight hundred seventy-two million, two hundred seventy-eight thousand, nine hundred eighty-three".