2011384657 has 2 divisors, whose sum is σ = 2011384658. Its totient is φ = 2011384656.

The previous prime is 2011384651. The next prime is 2011384667. The reversal of 2011384657 is 7564831102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1508234896 + 503149761 = 38836^2 + 22431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011384657 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011384651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005692328 + 1005692329.

It is an arithmetic number, because the mean of its divisors is an integer number (1005692329).

Almost surely, 2^2011384657 is an apocalyptic number.

It is an amenable number.

2011384657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011384657 is an equidigital number, since it uses as much as digits as its factorization.

2011384657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 2011384657 is about 44848.4632624129. The cubic root of 2011384657 is about 1262.3071562720.

The spelling of 2011384657 in words is "two billion, eleven million, three hundred eighty-four thousand, six hundred fifty-seven".