2861985078413 has 4 divisors (see below), whose sum is σ = 2861997240480. Its totient is φ = 2861972916348.

The previous prime is 2861985078401. The next prime is 2861985078493. The reversal of 2861985078413 is 3148705891682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2861985078413 - 2¹⁸ = 2861984816269 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 (2861985078493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5720945 + ... + 6201062.

It is an arithmetic number, because the mean of its divisors is an integer number (715499310120).

It is a 1-persistent number, because it is pandigital, but 2⋅2861985078413 = 5723970156826 is not.

Almost surely, 2^{2861985078413} is an apocalyptic number.

It is an amenable number.

2861985078413 is a deficient number, since it is larger than the sum of its proper divisors (12162067).

2861985078413 is a wasteful number, since it uses less digits than its factorization.

2861985078413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12162066.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 2861985078413 in words is "two trillion, eight hundred sixty-one billion, nine hundred eighty-five million, seventy-eight thousand, four hundred thirteen".