15140139264 has 108 divisors (see below), whose sum is σ = 44251228476. Its totient is φ = 4977524736.

The previous prime is 15140139253. The next prime is 15140139271. The reversal of 15140139264 is 46293104151.

It is a happy number.

15140139264 is a `hidden beast` number, since 1 + 514 + 0 + 139 + 2 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11365265664 + 3774873600 = 106608^2 + 61440^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123184 + ... + 213200.

It is an arithmetic number, because the mean of its divisors is an integer number (409733597).

Almost surely, 2^15140139264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15140139264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22125614238).

15140139264 is an abundant number, since it is smaller than the sum of its proper divisors (29111089212).

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

15140139264 is an equidigital number, since it uses as much as digits as its factorization.

15140139264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90112 (or 90095 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 15140139264 in words is "fifteen billion, one hundred forty million, one hundred thirty-nine thousand, two hundred sixty-four".