15198743448 has 160 divisors (see below), whose sum is σ = 49125922560. Its totient is φ = 4300205760.

The previous prime is 15198743423. The next prime is 15198743449. The reversal of 15198743448 is 84434789151.

15198743448 is a `hidden beast` number, since 1 + 5 + 198 + 7 + 4 + 3 + 448 = 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 = 15198743394 and 15198743403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15198743449) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 450943 + ... + 483473.

It is an arithmetic number, because the mean of its divisors is an integer number (307037016).

Almost surely, 2^15198743448 is an apocalyptic number.

15198743448 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 15198743448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24562961280).

15198743448 is an abundant number, since it is smaller than the sum of its proper divisors (33927179112).

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

15198743448 is a wasteful number, since it uses less digits than its factorization.

15198743448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32659 (or 32646 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 15198743448 in words is "fifteen billion, one hundred ninety-eight million, seven hundred forty-three thousand, four hundred forty-eight".