1873681306920 has 128 divisors (see below), whose sum is σ = 6245928230400. Its totient is φ = 499622439168.

The previous prime is 1873681306907. The next prime is 1873681306961. The reversal of 1873681306920 is 296031863781.

1873681306920 is a `hidden beast` number, since 187 + 368 + 13 + 0 + 6 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 30205777 + ... + 30267743.

It is an arithmetic number, because the mean of its divisors is an integer number (48796314300).

Almost surely, 2^{1873681306920} is an apocalyptic number.

1873681306920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1873681306920 is an abundant number, since it is smaller than the sum of its proper divisors (4372246923480).

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

1873681306920 is a wasteful number, since it uses less digits than its factorization.

1873681306920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89984 (or 89974 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 1873681306920 in words is "one trillion, eight hundred seventy-three billion, six hundred eighty-one million, three hundred six thousand, nine hundred twenty".