1648474391650 has 24 divisors (see below), whose sum is σ = 3066618387924. Its totient is φ = 659291688000.

The previous prime is 1648474391633. The next prime is 1648474391701. The reversal of 1648474391650 is 561934748461.

It can be written as a sum of positive squares in 6 ways, for example, as 788698519569 + 859775872081 = 888087^2 + 927241^2 .

It is a super-3 number, since 3×1648474391650³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2111701 + ... + 2785000.

Almost surely, 2^{1648474391650} is an apocalyptic number.

1648474391650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1648474391650 is a deficient number, since it is larger than the sum of its proper divisors (1418143996274).

1648474391650 is a wasteful number, since it uses less digits than its factorization.

1648474391650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903446 (or 4903441 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 1648474391650 in words is "one trillion, six hundred forty-eight billion, four hundred seventy-four million, three hundred ninety-one thousand, six hundred fifty".