87025853389 has 2 divisors, whose sum is σ = 87025853390. Its totient is φ = 87025853388.

The previous prime is 87025853381. The next prime is 87025853393. The reversal of 87025853389 is 98335852078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82595886025 + 4429967364 = 287395^2 + 66558^2 .

It is a cyclic number.

It is not a de Polignac number, because 87025853389 - 2³ = 87025853381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87025853381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43512926694 + 43512926695.

It is an arithmetic number, because the mean of its divisors is an integer number (43512926695).

Almost surely, 2^87025853389 is an apocalyptic number.

It is an amenable number.

87025853389 is a deficient number, since it is larger than the sum of its proper divisors (1).

87025853389 is an equidigital number, since it uses as much as digits as its factorization.

87025853389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14515200, while the sum is 58.

The spelling of 87025853389 in words is "eighty-seven billion, twenty-five million, eight hundred fifty-three thousand, three hundred eighty-nine".