6138687485 has 32 divisors (see below), whose sum is σ = 9078048000. Its totient is φ = 3890557440.

The previous prime is 6138687479. The next prime is 6138687497. The reversal of 6138687485 is 5847868316.

6138687485 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6138687485 - 2³⁰ = 5064945661 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6138687485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85310 + ... + 139839.

It is an arithmetic number, because the mean of its divisors is an integer number (283689000).

Almost surely, 2^6138687485 is an apocalyptic number.

It is an amenable number.

6138687485 is a deficient number, since it is larger than the sum of its proper divisors (2939360515).

6138687485 is a wasteful number, since it uses less digits than its factorization.

6138687485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225221.

The product of its digits is 7741440, while the sum is 56.

The square root of 6138687485 is about 78349.7765472244. The cubic root of 6138687485 is about 1831.0147442314.

The spelling of 6138687485 in words is "six billion, one hundred thirty-eight million, six hundred eighty-seven thousand, four hundred eighty-five".