2081570631 has 32 divisors (see below), whose sum is σ = 3347097600. Its totient is φ = 1124085600.

The previous prime is 2081570611. The next prime is 2081570641. The reversal of 2081570631 is 1360751802.

It is not a de Polignac number, because 2081570631 - 2⁶ = 2081570567 is a prime.

It is a super-2 number, since 2×2081570631² = 8665872583683476322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2081570592 and 2081570601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081570611) 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 31 ways as a sum of consecutive naturals, for example, 160956 + ... + 173406.

It is an arithmetic number, because the mean of its divisors is an integer number (104596800).

Almost surely, 2^2081570631 is an apocalyptic number.

2081570631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2081570631 is a deficient number, since it is larger than the sum of its proper divisors (1265526969).

2081570631 is a wasteful number, since it uses less digits than its factorization.

2081570631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2081570631 is about 45624.2329360177. The cubic root of 2081570631 is about 1276.8220789050.

The spelling of 2081570631 in words is "two billion, eighty-one million, five hundred seventy thousand, six hundred thirty-one".