2087852681 has 2 divisors, whose sum is σ = 2087852682. Its totient is φ = 2087852680.

The previous prime is 2087852629. The next prime is 2087852699. The reversal of 2087852681 is 1862587802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2086662400 + 1190281 = 45680^2 + 1091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2087852681 is a prime.

It is a super-2 number, since 2×2087852681² = 8718257635117775522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2087852621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043926340 + 1043926341.

It is an arithmetic number, because the mean of its divisors is an integer number (1043926341).

Almost surely, 2^2087852681 is an apocalyptic number.

It is an amenable number.

2087852681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2087852681 is an equidigital number, since it uses as much as digits as its factorization.

2087852681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 2087852681 is about 45693.0266123836. The cubic root of 2087852681 is about 1278.1052453281.

The spelling of 2087852681 in words is "two billion, eighty-seven million, eight hundred fifty-two thousand, six hundred eighty-one".