15247953648 has 80 divisors (see below), whose sum is σ = 43805207200. Its totient is φ = 5078246400.

The previous prime is 15247953641. The next prime is 15247953671. The reversal of 15247953648 is 84635974251.

It is a happy number.

15247953648 is a `hidden beast` number, since 1 + 524 + 7 + 9 + 53 + 64 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 15247953594 and 15247953603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15247953641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504138 + ... + 533526.

It is an arithmetic number, because the mean of its divisors is an integer number (547565090).

Almost surely, 2^15247953648 is an apocalyptic number.

15247953648 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 15247953648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21902603600).

15247953648 is an abundant number, since it is smaller than the sum of its proper divisors (28557253552).

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

15247953648 is a wasteful number, since it uses less digits than its factorization.

15247953648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30607 (or 30595 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 15247953648 in words is "fifteen billion, two hundred forty-seven million, nine hundred fifty-three thousand, six hundred forty-eight".