15498782448 has 160 divisors (see below), whose sum is σ = 42897254400. Its totient is φ = 4807911168.

The previous prime is 15498782399. The next prime is 15498782449. The reversal of 15498782448 is 84428789451.

It is a junction number, because it is equal to n+sod(n) for n = 15498782391 and 15498782400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15498782449) 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, 13056511 + ... + 13057697.

It is an arithmetic number, because the mean of its divisors is an integer number (268107840).

Almost surely, 2^15498782448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15498782448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21448627200).

15498782448 is an abundant number, since it is smaller than the sum of its proper divisors (27398471952).

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

15498782448 is a wasteful number, since it uses less digits than its factorization.

15498782448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1453 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 60.

The spelling of 15498782448 in words is "fifteen billion, four hundred ninety-eight million, seven hundred eighty-two thousand, four hundred forty-eight".