1648063748 has 12 divisors (see below), whose sum is σ = 2886304092. Its totient is φ = 823405440.

The previous prime is 1648063733. The next prime is 1648063771. The reversal of 1648063748 is 8473608461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 778521604 + 869542144 = 27902^2 + 29488^2 .

It is a super-2 number, since 2×1648063748² = 5432228234943615008, which contains 22 as substring.

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, 150665 + ... + 161232.

It is an arithmetic number, because the mean of its divisors is an integer number (240525341).

Almost surely, 2^1648063748 is an apocalyptic number.

It is an amenable number.

1648063748 is a deficient number, since it is larger than the sum of its proper divisors (1238240344).

1648063748 is a wasteful number, since it uses less digits than its factorization.

1648063748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313222 (or 313220 counting only the distinct ones).

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

The square root of 1648063748 is about 40596.3514124114. The cubic root of 1648063748 is about 1181.2033467834.

The spelling of 1648063748 in words is "one billion, six hundred forty-eight million, sixty-three thousand, seven hundred forty-eight".