4078125513 has 24 divisors (see below), whose sum is σ = 7344158016. Its totient is φ = 2118506400.

The previous prime is 4078125511. The next prime is 4078125517. The reversal of 4078125513 is 3155218704.

4078125513 is a `hidden beast` number, since 40 + 7 + 81 + 25 + 513 = 666.

It is not a de Polignac number, because 4078125513 - 2¹ = 4078125511 is a prime.

It is a super-2 number, since 2×4078125513² = 33262215399563026338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4078125511) 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, 2941678 + ... + 2943063.

It is an arithmetic number, because the mean of its divisors is an integer number (306006584).

Almost surely, 2^4078125513 is an apocalyptic number.

It is an amenable number.

4078125513 is a deficient number, since it is larger than the sum of its proper divisors (3266032503).

4078125513 is a wasteful number, since it uses less digits than its factorization.

4078125513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884765 (or 5884762 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 4078125513 is about 63860.2028888102. The cubic root of 4078125513 is about 1597.6691990917.

The spelling of 4078125513 in words is "four billion, seventy-eight million, one hundred twenty-five thousand, five hundred thirteen".