1648263964 has 12 divisors (see below), whose sum is σ = 2914199344. Its totient is φ = 815635584.

The previous prime is 1648263949. The next prime is 1648263971. The reversal of 1648263964 is 4693628461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123664 + ... + 2124439.

Almost surely, 2^1648263964 is an apocalyptic number.

It is an amenable number.

1648263964 is a deficient number, since it is larger than the sum of its proper divisors (1265935380).

1648263964 is a wasteful number, since it uses less digits than its factorization.

1648263964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248204 (or 4248202 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The square root of 1648263964 is about 40598.8172734133. The cubic root of 1648263964 is about 1181.2511779091.

The spelling of 1648263964 in words is "one billion, six hundred forty-eight million, two hundred sixty-three thousand, nine hundred sixty-four".