1493644520448 has 220 divisors, whose sum is σ = 4492437823720. Its totient is φ = 494295810048.

The previous prime is 1493644520447. The next prime is 1493644520471. The reversal of 1493644520448 is 8440254463941.

1493644520448 is a `hidden beast` number, since 1 + 4 + 9 + 36 + 44 + 520 + 4 + 48 = 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 = 1493644520394 and 1493644520403.

It is not an unprimeable number, because it can be changed into a prime (1493644520447) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11464440 + ... + 11593992.

It is an arithmetic number, because the mean of its divisors is an integer number (20420171926).

Almost surely, 2^{1493644520448} is an apocalyptic number.

1493644520448 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 1493644520448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2246218911860).

1493644520448 is an abundant number, since it is smaller than the sum of its proper divisors (2998793303272).

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

1493644520448 is a wasteful number, since it uses less digits than its factorization.

1493644520448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129724 (or 129697 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 1493644520448 in words is "one trillion, four hundred ninety-three billion, six hundred forty-four million, five hundred twenty thousand, four hundred forty-eight".