1628273648 has 10 divisors (see below), whose sum is σ = 3154780224. Its totient is φ = 814136816.

The previous prime is 1628273641. The next prime is 1628273657. The reversal of 1628273648 is 8463728261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628273641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50883536 + ... + 50883567.

Almost surely, 2^1628273648 is an apocalyptic number.

It is an amenable number.

1628273648 is a deficient number, since it is larger than the sum of its proper divisors (1526506576).

1628273648 is a wasteful number, since it uses less digits than its factorization.

1628273648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101767111 (or 101767105 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 1628273648 is about 40351.8729181187. The cubic root of 1628273648 is about 1176.4562955432.

The spelling of 1628273648 in words is "one billion, six hundred twenty-eight million, two hundred seventy-three thousand, six hundred forty-eight".