1878810670881 has 16 divisors (see below), whose sum is σ = 2830599883200. Its totient is φ = 1231310947104.

The previous prime is 1878810670817. The next prime is 1878810670883. The reversal of 1878810670881 is 1880760188781.

It is not a de Polignac number, because 1878810670881 - 2⁶ = 1878810670817 is a prime.

It is a super-2 number, since 2×1878810670881² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1878810670883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589706716 + ... + 589709901.

It is an arithmetic number, because the mean of its divisors is an integer number (176912492700).

Almost surely, 2^{1878810670881} is an apocalyptic number.

It is an amenable number.

1878810670881 is a deficient number, since it is larger than the sum of its proper divisors (951789212319).

1878810670881 is a wasteful number, since it uses less digits than its factorization.

1878810670881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179416685 (or 1179416679 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 63.

The spelling of 1878810670881 in words is "one trillion, eight hundred seventy-eight billion, eight hundred ten million, six hundred seventy thousand, eight hundred eighty-one".