2986532781 has 16 divisors (see below), whose sum is σ = 4144647360. Its totient is φ = 1910563200.

The previous prime is 2986532779. The next prime is 2986532789. The reversal of 2986532781 is 1872356892.

It is not a de Polignac number, because 2986532781 - 2¹ = 2986532779 is a prime.

It is a super-2 number, since 2×2986532781² = 17838756103975187922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2986532789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91120 + ... + 119481.

It is an arithmetic number, because the mean of its divisors is an integer number (259040460).

Almost surely, 2^2986532781 is an apocalyptic number.

It is an amenable number.

2986532781 is a deficient number, since it is larger than the sum of its proper divisors (1158114579).

2986532781 is a wasteful number, since it uses less digits than its factorization.

2986532781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210796.

The product of its digits is 1451520, while the sum is 51.

The square root of 2986532781 is about 54649.1791429661. The cubic root of 2986532781 is about 1440.0882117065.

The spelling of 2986532781 in words is "two billion, nine hundred eighty-six million, five hundred thirty-two thousand, seven hundred eighty-one".