2051104639 has 2 divisors, whose sum is σ = 2051104640. Its totient is φ = 2051104638.

The previous prime is 2051104633. The next prime is 2051104709. The reversal of 2051104639 is 9364011502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051104639 - 2³ = 2051104631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2051104639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051104631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025552319 + 1025552320.

It is an arithmetic number, because the mean of its divisors is an integer number (1025552320).

Almost surely, 2^2051104639 is an apocalyptic number.

2051104639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051104639 is an equidigital number, since it uses as much as digits as its factorization.

2051104639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2051104639 is about 45289.1227448711. The cubic root of 2051104639 is about 1270.5622242536.

The spelling of 2051104639 in words is "two billion, fifty-one million, one hundred four thousand, six hundred thirty-nine".