1648264872 has 32 divisors (see below), whose sum is σ = 4121750880. Its totient is φ = 549276480.

The previous prime is 1648264867. The next prime is 1648264873. The reversal of 1648264872 is 2784628461.

It is not an unprimeable number, because it can be changed into a prime (1648264873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122763 + ... + 135525.

It is an arithmetic number, because the mean of its divisors is an integer number (128804715).

Almost surely, 2^1648264872 is an apocalyptic number.

1648264872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1648264872 is an abundant number, since it is smaller than the sum of its proper divisors (2473486008).

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

1648264872 is a wasteful number, since it uses less digits than its factorization.

1648264872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18153 (or 18149 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 1648264872 is about 40598.8284560035. The cubic root of 1648264872 is about 1181.2513948193.

The spelling of 1648264872 in words is "one billion, six hundred forty-eight million, two hundred sixty-four thousand, eight hundred seventy-two".