15047064648 has 576 divisors, whose sum is σ = 54086123520. Its totient is φ = 3734035200.

The previous prime is 15047064631. The next prime is 15047064661. The reversal of 15047064648 is 84646074051.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 118480761 + ... + 118480887.

It is an arithmetic number, because the mean of its divisors is an integer number (93899520).

Almost surely, 2^15047064648 is an apocalyptic number.

15047064648 is a gapful number since it is divisible by the number (18) 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 15047064648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27043061760).

15047064648 is an abundant number, since it is smaller than the sum of its proper divisors (39039058872).

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

15047064648 is a wasteful number, since it uses less digits than its factorization.

15047064648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 15047064648 in words is "fifteen billion, forty-seven million, sixty-four thousand, six hundred forty-eight".