1878418587860 has 24 divisors (see below), whose sum is σ = 3944715704160. Its totient is φ = 751360450464.

The previous prime is 1878418587847. The next prime is 1878418587889. The reversal of 1878418587860 is 687858148781.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2139467 + ... + 2886893.

It is an arithmetic number, because the mean of its divisors is an integer number (164363154340).

Almost surely, 2^{1878418587860} is an apocalyptic number.

1878418587860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1878418587860 is an abundant number, since it is smaller than the sum of its proper divisors (2066297116300).

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

1878418587860 is a wasteful number, since it uses less digits than its factorization.

1878418587860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873095 (or 873093 counting only the distinct ones).

The product of its (nonzero) digits is 192675840, while the sum is 71.

The spelling of 1878418587860 in words is "one trillion, eight hundred seventy-eight billion, four hundred eighteen million, five hundred eighty-seven thousand, eight hundred sixty".