384877581943 has 4 divisors (see below), whose sum is σ = 384885546760. Its totient is φ = 384869617128.

The previous prime is 384877581883. The next prime is 384877581961. The reversal of 384877581943 is 349185778483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349185778483 = 229 ⋅1524828727.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384877581943 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 (384877581643) 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, 3909480 + ... + 4006717.

It is an arithmetic number, because the mean of its divisors is an integer number (96221386690).

Almost surely, 2^384877581943 is an apocalyptic number.

384877581943 is a deficient number, since it is larger than the sum of its proper divisors (7964817).

384877581943 is an equidigital number, since it uses as much as digits as its factorization.

384877581943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7964816.

The product of its digits is 162570240, while the sum is 67.

The spelling of 384877581943 in words is "three hundred eighty-four billion, eight hundred seventy-seven million, five hundred eighty-one thousand, nine hundred forty-three".