20140584691 has 2 divisors, whose sum is σ = 20140584692. Its totient is φ = 20140584690.

The previous prime is 20140584683. The next prime is 20140584791. The reversal of 20140584691 is 19648504102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20140584691 - 2³ = 20140584683 is a prime.

It is not a weakly prime, because it can be changed into another prime (20140584631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070292345 + 10070292346.

It is an arithmetic number, because the mean of its divisors is an integer number (10070292346).

Almost surely, 2^20140584691 is an apocalyptic number.

20140584691 is a deficient number, since it is larger than the sum of its proper divisors (1).

20140584691 is an equidigital number, since it uses as much as digits as its factorization.

20140584691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 20140584691 in words is "twenty billion, one hundred forty million, five hundred eighty-four thousand, six hundred ninety-one".