2051608747 has 4 divisors (see below), whose sum is σ = 2090318400. Its totient is φ = 2012899096.

The previous prime is 2051608709. The next prime is 2051608759. The reversal of 2051608747 is 7478061502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051608747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051608787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19354747 + ... + 19354852.

It is an arithmetic number, because the mean of its divisors is an integer number (522579600).

Almost surely, 2^2051608747 is an apocalyptic number.

2051608747 is a deficient number, since it is larger than the sum of its proper divisors (38709653).

2051608747 is an equidigital number, since it uses as much as digits as its factorization.

2051608747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38709652.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 2051608747 is about 45294.6878452650. The cubic root of 2051608747 is about 1270.6663060744. Note that the first 3 decimals are identical.

The spelling of 2051608747 in words is "two billion, fifty-one million, six hundred eight thousand, seven hundred forty-seven".