2073661779 has 16 divisors (see below), whose sum is σ = 3161320448. Its totient is φ = 1184404032.

The previous prime is 2073661769. The next prime is 2073661783. The reversal of 2073661779 is 9771663702.

It is not a de Polignac number, because 2073661779 - 2⁵ = 2073661747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2073661739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26439 + ... + 69615.

It is an arithmetic number, because the mean of its divisors is an integer number (197582528).

Almost surely, 2^2073661779 is an apocalyptic number.

2073661779 is a deficient number, since it is larger than the sum of its proper divisors (1087658669).

2073661779 is a wasteful number, since it uses less digits than its factorization.

2073661779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45474.

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 2073661779 is about 45537.4766428708. The cubic root of 2073661779 is about 1275.2029468563.

The spelling of 2073661779 in words is "two billion, seventy-three million, six hundred sixty-one thousand, seven hundred seventy-nine".