1648146974020 has 48 divisors (see below), whose sum is σ = 3760797196800. Its totient is φ = 604413826560.

The previous prime is 1648146974009. The next prime is 1648146974021. The reversal of 1648146974020 is 204796418461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1648146974021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69943525 + ... + 69967084.

It is an arithmetic number, because the mean of its divisors is an integer number (78349941600).

Almost surely, 2^{1648146974020} is an apocalyptic number.

1648146974020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1648146974020 is an abundant number, since it is smaller than the sum of its proper divisors (2112650222780).

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

1648146974020 is a wasteful number, since it uses less digits than its factorization.

1648146974020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139910668 (or 139910666 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 1648146974020 in words is "one trillion, six hundred forty-eight billion, one hundred forty-six million, nine hundred seventy-four thousand, twenty".