2861408801 has 16 divisors (see below), whose sum is σ = 3089988240. Its totient is φ = 2643943680.

The previous prime is 2861408789. The next prime is 2861408807. The reversal of 2861408801 is 1088041682.

It can be written as a sum of positive squares in 8 ways, for example, as 252651025 + 2608757776 = 15895^2 + 51076^2 .

It is a cyclic number.

It is not a de Polignac number, because 2861408801 - 2¹⁰ = 2861407777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2861408807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43595 + ... + 87311.

It is an arithmetic number, because the mean of its divisors is an integer number (193124265).

Almost surely, 2^2861408801 is an apocalyptic number.

It is an amenable number.

2861408801 is a deficient number, since it is larger than the sum of its proper divisors (228579439).

2861408801 is a wasteful number, since it uses less digits than its factorization.

2861408801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43844.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 2861408801 is about 53492.1377493927. The cubic root of 2861408801 is about 1419.6892795310.

The spelling of 2861408801 in words is "two billion, eight hundred sixty-one million, four hundred eight thousand, eight hundred one".