2086722531 has 12 divisors (see below), whose sum is σ = 3014862552. Its totient is φ = 1390821696.

The previous prime is 2086722529. The next prime is 2086722563. The reversal of 2086722531 is 1352276802.

2086722531 is a `hidden beast` number, since 20 + 86 + 7 + 22 + 531 = 666.

It is not a de Polignac number, because 2086722531 - 2¹ = 2086722529 is a prime.

It is a super-2 number, since 2×2086722531² = 8708821842766091922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2086722581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17020 + ... + 66806.

It is an arithmetic number, because the mean of its divisors is an integer number (251238546).

Almost surely, 2^2086722531 is an apocalyptic number.

2086722531 is a deficient number, since it is larger than the sum of its proper divisors (928140021).

2086722531 is a wasteful number, since it uses less digits than its factorization.

2086722531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54450 (or 54447 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2086722531 is about 45680.6581717033. The cubic root of 2086722531 is about 1277.8745918660.

The spelling of 2086722531 in words is "two billion, eighty-six million, seven hundred twenty-two thousand, five hundred thirty-one".