15415005012 has 96 divisors (see below), whose sum is σ = 40594635648. Its totient is φ = 4512000000.

The previous prime is 15415004999. The next prime is 15415005043. The reversal of 15415005012 is 21050051451.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532512 + ... + 560712.

It is an arithmetic number, because the mean of its divisors is an integer number (422860788).

Almost surely, 2^15415005012 is an apocalyptic number.

15415005012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15415005012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20297317824).

15415005012 is an abundant number, since it is smaller than the sum of its proper divisors (25179630636).

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

15415005012 is a wasteful number, since it uses less digits than its factorization.

15415005012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28361 (or 28359 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 15415005012 its reverse (21050051451), we get a palindrome (36465056463).

The spelling of 15415005012 in words is "fifteen billion, four hundred fifteen million, five thousand, twelve".