2865745087881 has 8 divisors (see below), whose sum is σ = 4114916023680. Its totient is φ = 1763535438672.

The previous prime is 2865745087859. The next prime is 2865745087897. The reversal of 2865745087881 is 1887805475682.

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

It is not a de Polignac number, because 2865745087881 - 2³⁰ = 2864671346057 is a prime.

It is a super-2 number, since 2×2865745087881² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2865745087481) 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, 36740321601 + ... + 36740321678.

It is an arithmetic number, because the mean of its divisors is an integer number (514364502960).

Almost surely, 2^{2865745087881} is an apocalyptic number.

It is an amenable number.

2865745087881 is a deficient number, since it is larger than the sum of its proper divisors (1249170935799).

2865745087881 is a wasteful number, since it uses less digits than its factorization.

2865745087881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73480643295.

The product of its (nonzero) digits is 240844800, while the sum is 69.

The spelling of 2865745087881 in words is "two trillion, eight hundred sixty-five billion, seven hundred forty-five million, eighty-seven thousand, eight hundred eighty-one".