384149497778 has 8 divisors (see below), whose sum is σ = 576344332800. Its totient is φ = 192034720180.

The previous prime is 384149497741. The next prime is 384149497789. The reversal of 384149497778 is 877794941483.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20002358 + ... + 20021553.

It is an arithmetic number, because the mean of its divisors is an integer number (72043041600).

Almost surely, 2^384149497778 is an apocalyptic number.

384149497778 is a deficient number, since it is larger than the sum of its proper divisors (192194835022).

384149497778 is a wasteful number, since it uses less digits than its factorization.

384149497778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40028712.

The product of its digits is 341397504, while the sum is 71.

The spelling of 384149497778 in words is "three hundred eighty-four billion, one hundred forty-nine million, four hundred ninety-seven thousand, seven hundred seventy-eight".