384661577770 has 16 divisors (see below), whose sum is σ = 694837455840. Its totient is φ = 153320938704.

The previous prime is 384661577753. The next prime is 384661577779. The reversal of 384661577770 is 77775166483.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 384661577699 and 384661577708.

It is not an unprimeable number, because it can be changed into a prime (384661577779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67958580 + ... + 67964239.

It is an arithmetic number, because the mean of its divisors is an integer number (43427340990).

Almost surely, 2^384661577770 is an apocalyptic number.

384661577770 is a deficient number, since it is larger than the sum of its proper divisors (310175878070).

384661577770 is a wasteful number, since it uses less digits than its factorization.

384661577770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135923109.

The product of its (nonzero) digits is 41489280, while the sum is 61.

The spelling of 384661577770 in words is "three hundred eighty-four billion, six hundred sixty-one million, five hundred seventy-seven thousand, seven hundred seventy".