84650940911 has 2 divisors, whose sum is σ = 84650940912. Its totient is φ = 84650940910.

The previous prime is 84650940859. The next prime is 84650940929. The reversal of 84650940911 is 11904905648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84650940911 - 2²² = 84646746607 is a prime.

It is a super-2 number, since 2×84650940911² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84650940931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42325470455 + 42325470456.

It is an arithmetic number, because the mean of its divisors is an integer number (42325470456).

Almost surely, 2^84650940911 is an apocalyptic number.

84650940911 is a deficient number, since it is larger than the sum of its proper divisors (1).

84650940911 is an equidigital number, since it uses as much as digits as its factorization.

84650940911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 84650940911 in words is "eighty-four billion, six hundred fifty million, nine hundred forty thousand, nine hundred eleven".