1873664544 has 48 divisors (see below), whose sum is σ = 4924311840. Its totient is φ = 623800320.

The previous prime is 1873664531. The next prime is 1873664591. The reversal of 1873664544 is 4454663781.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1873664493 and 1873664502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71104 + ... + 93824.

It is an arithmetic number, because the mean of its divisors is an integer number (102589830).

Almost surely, 2^1873664544 is an apocalyptic number.

It is an amenable number.

1873664544 is an abundant number, since it is smaller than the sum of its proper divisors (3050647296).

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

1873664544 is a wasteful number, since it uses less digits than its factorization.

1873664544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23593 (or 23585 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The square root of 1873664544 is about 43285.8469248321. The cubic root of 1873664544 is about 1232.8132105030.

The spelling of 1873664544 in words is "one billion, eight hundred seventy-three million, six hundred sixty-four thousand, five hundred forty-four".