4078617012 has 72 divisors (see below), whose sum is σ = 10532392416. Its totient is φ = 1330501824.

The previous prime is 4078616981. The next prime is 4078617013. The reversal of 4078617012 is 2107168704.

4078617012 is a `hidden beast` number, since 407 + 86 + 170 + 1 + 2 = 666.

4078617012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078617013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313338 + ... + 326094.

It is an arithmetic number, because the mean of its divisors is an integer number (146283228).

Almost surely, 2^4078617012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4078617012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5266196208).

4078617012 is an abundant number, since it is smaller than the sum of its proper divisors (6453775404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4078617012 is a wasteful number, since it uses less digits than its factorization.

4078617012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12957 (or 12952 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 4078617012 is about 63864.0510146358. The cubic root of 4078617012 is about 1597.7333806434.

The spelling of 4078617012 in words is "four billion, seventy-eight million, six hundred seventeen thousand, twelve".