6138481086 has 72 divisors (see below), whose sum is σ = 14095501056. Its totient is φ = 1930167360.

The previous prime is 6138481081. The next prime is 6138481087. The reversal of 6138481086 is 6801848316.

It is a happy number.

6138481086 is a `hidden beast` number, since 61 + 38 + 481 + 0 + 86 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6138481081) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 690691 + ... + 699521.

It is an arithmetic number, because the mean of its divisors is an integer number (195770848).

Almost surely, 2^6138481086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6138481086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7047750528).

6138481086 is an abundant number, since it is smaller than the sum of its proper divisors (7957019970).

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

6138481086 is a wasteful number, since it uses less digits than its factorization.

6138481086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958 (or 8932 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 6138481086 is about 78348.4593722174. The cubic root of 6138481086 is about 1830.9942228063.

The spelling of 6138481086 in words is "six billion, one hundred thirty-eight million, four hundred eighty-one thousand, eighty-six".