15045042012 has 192 divisors, whose sum is σ = 47604630528. Its totient is φ = 3571200000.

The previous prime is 15045041993. The next prime is 15045042043. The reversal of 15045042012 is 21024054051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1207012 + ... + 1219412.

It is an arithmetic number, because the mean of its divisors is an integer number (247940784).

Almost surely, 2^15045042012 is an apocalyptic number.

15045042012 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 15045042012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23802315264).

15045042012 is an abundant number, since it is smaller than the sum of its proper divisors (32559588516).

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

15045042012 is a wasteful number, since it uses less digits than its factorization.

15045042012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12540 (or 12538 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 15045042012 its reverse (21024054051), we get a palindrome (36069096063).

The spelling of 15045042012 in words is "fifteen billion, forty-five million, forty-two thousand, twelve".