1871887038673 has 8 divisors (see below), whose sum is σ = 1899940477088. Its totient is φ = 1843898766624.

The previous prime is 1871887038661. The next prime is 1871887038733. The reversal of 1871887038673 is 3768307881781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1871887038673 is a prime.

It is a super-2 number, since 2×1871887038673² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1871887038599 and 1871887038608.

It is not an unprimeable number, because it can be changed into a prime (1871887138673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16233711 + ... + 16348612.

It is an arithmetic number, because the mean of its divisors is an integer number (237492559636).

Almost surely, 2^{1871887038673} is an apocalyptic number.

It is an amenable number.

1871887038673 is a deficient number, since it is larger than the sum of its proper divisors (28053438415).

1871887038673 is an equidigital number, since it uses as much as digits as its factorization.

1871887038673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32583183.

The product of its (nonzero) digits is 75866112, while the sum is 67.

The spelling of 1871887038673 in words is "one trillion, eight hundred seventy-one billion, eight hundred eighty-seven million, thirty-eight thousand, six hundred seventy-three".