1881055678013 has 16 divisors (see below), whose sum is σ = 1998635154480. Its totient is φ = 1766996614656.

The previous prime is 1881055678003. The next prime is 1881055678039. The reversal of 1881055678013 is 3108765501881.

It can be written as a sum of positive squares in 8 ways, for example, as 3887148409 + 1877168529604 = 62347^2 + 1370098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1881055678013 - 2⁴ = 1881055677997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881055678003) 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, 21322631 + ... + 21410667.

It is an arithmetic number, because the mean of its divisors is an integer number (124914697155).

Almost surely, 2^{1881055678013} is an apocalyptic number.

It is an amenable number.

1881055678013 is a deficient number, since it is larger than the sum of its proper divisors (117579476467).

1881055678013 is a wasteful number, since it uses less digits than its factorization.

1881055678013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108016.

The product of its (nonzero) digits is 1612800, while the sum is 53.

The spelling of 1881055678013 in words is "one trillion, eight hundred eighty-one billion, fifty-five million, six hundred seventy-eight thousand, thirteen".