15450847146 has 64 divisors (see below), whose sum is σ = 39308808960. Its totient is φ = 4406814720.

The previous prime is 15450847129. The next prime is 15450847147. The reversal of 15450847146 is 64174805451.

15450847146 is a `hidden beast` number, since 15 + 450 + 8 + 47 + 146 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15450847147) by changing a digit.

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, 182686 + ... + 253526.

It is an arithmetic number, because the mean of its divisors is an integer number (614200140).

Almost surely, 2^15450847146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15450847146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19654404480).

15450847146 is an abundant number, since it is smaller than the sum of its proper divisors (23857961814).

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

15450847146 is a wasteful number, since it uses less digits than its factorization.

15450847146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71436 (or 71430 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 15450847146 in words is "fifteen billion, four hundred fifty million, eight hundred forty-seven thousand, one hundred forty-six".