48438131586 has 64 divisors (see below), whose sum is σ = 110562350976. Its totient is φ = 14015001600.

The previous prime is 48438131551. The next prime is 48438131587. The reversal of 48438131586 is 68513183484.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (48438131587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1550541 + ... + 1581471.

It is an arithmetic number, because the mean of its divisors is an integer number (1727536734).

Almost surely, 2^48438131586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48438131586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55281175488).

48438131586 is an abundant number, since it is smaller than the sum of its proper divisors (62124219390).

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

48438131586 is a wasteful number, since it uses less digits than its factorization.

48438131586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32147.

The product of its digits is 2211840, while the sum is 51.

The spelling of 48438131586 in words is "forty-eight billion, four hundred thirty-eight million, one hundred thirty-one thousand, five hundred eighty-six".