2856784896001 has 8 divisors (see below), whose sum is σ = 3024873750024. Its totient is φ = 2688700784640.

The previous prime is 2856784895981. The next prime is 2856784896079. The reversal of 2856784896001 is 1006984876582.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5475600 + 2856779420401 = 2340^2 + 1690201^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2856784896001 - 2⁵ = 2856784895969 is a prime.

It is a super-2 number, since 2×2856784896001² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2856784896101) 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, 93961 + ... + 2392153.

It is an arithmetic number, because the mean of its divisors is an integer number (378109218753).

Almost surely, 2^{2856784896001} is an apocalyptic number.

It is an amenable number.

2856784896001 is a deficient number, since it is larger than the sum of its proper divisors (168088854023).

2856784896001 is a wasteful number, since it uses less digits than its factorization.

2856784896001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371331.

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 2856784896001 in words is "two trillion, eight hundred fifty-six billion, seven hundred eighty-four million, eight hundred ninety-six thousand, one".