20207850287 has 2 divisors, whose sum is σ = 20207850288. Its totient is φ = 20207850286.

The previous prime is 20207850227. The next prime is 20207850319. The reversal of 20207850287 is 78205870202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20207850287 - 2¹⁴ = 20207833903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20207850227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103925143 + 10103925144.

It is an arithmetic number, because the mean of its divisors is an integer number (10103925144).

Almost surely, 2^20207850287 is an apocalyptic number.

20207850287 is a deficient number, since it is larger than the sum of its proper divisors (1).

20207850287 is an equidigital number, since it uses as much as digits as its factorization.

20207850287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 20207850287 in words is "twenty billion, two hundred seven million, eight hundred fifty thousand, two hundred eighty-seven".