4078518072 has 32 divisors (see below), whose sum is σ = 10363451280. Its totient is φ = 1337218560.

The previous prime is 4078518071. The next prime is 4078518083. The reversal of 4078518072 is 2708158704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078518071) 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, 1391473 + ... + 1394400.

Almost surely, 2^4078518072 is an apocalyptic number.

It is an amenable number.

4078518072 is an abundant number, since it is smaller than the sum of its proper divisors (6284933208).

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

4078518072 is a wasteful number, since it uses less digits than its factorization.

4078518072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785943 (or 2785939 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 4078518072 is about 63863.2763957503. The cubic root of 4078518072 is about 1597.7204611481.

The spelling of 4078518072 in words is "four billion, seventy-eight million, five hundred eighteen thousand, seventy-two".