2329778385 has 48 divisors (see below), whose sum is σ = 4637280960. Its totient is φ = 1070133120.

The previous prime is 2329778357. The next prime is 2329778387. The reversal of 2329778385 is 5838779232.

2329778385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2329778385 - 2⁷ = 2329778257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2329778387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114454 + ... + 133263.

It is an arithmetic number, because the mean of its divisors is an integer number (96610020).

Almost surely, 2^2329778385 is an apocalyptic number.

It is an amenable number.

2329778385 is a deficient number, since it is larger than the sum of its proper divisors (2307502575).

2329778385 is a wasteful number, since it uses less digits than its factorization.

2329778385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247758 (or 247755 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 2329778385 is about 48267.7779165356. Note that the first 3 decimals coincide. The cubic root of 2329778385 is about 1325.6784725090.

The spelling of 2329778385 in words is "two billion, three hundred twenty-nine million, seven hundred seventy-eight thousand, three hundred eighty-five".