1648737552 has 80 divisors (see below), whose sum is σ = 5310231552. Its totient is φ = 428242560.

The previous prime is 1648737539. The next prime is 1648737553. The reversal of 1648737552 is 2557378461.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1648737553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219348 + ... + 226739.

Almost surely, 2^1648737552 is an apocalyptic number.

1648737552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1648737552 is an abundant number, since it is smaller than the sum of its proper divisors (3661494000).

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

1648737552 is a wasteful number, since it uses less digits than its factorization.

1648737552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446116 (or 446110 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 1648737552 is about 40604.6493889554. The cubic root of 1648737552 is about 1181.3643015399.

The spelling of 1648737552 in words is "one billion, six hundred forty-eight million, seven hundred thirty-seven thousand, five hundred fifty-two".