2005898477773 has 4 divisors (see below), whose sum is σ = 2007733701628. Its totient is φ = 2004063253920.

The previous prime is 2005898477699. The next prime is 2005898477813. The reversal of 2005898477773 is 3777748985002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1220755394884 + 785143082889 = 1104878^2 + 886083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005898477773 - 2²⁹ = 2005361606861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2005898477699 and 2005898477708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005898477573) 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, 917610288 + ... + 917612473.

It is an arithmetic number, because the mean of its divisors is an integer number (501933425407).

Almost surely, 2^{2005898477773} is an apocalyptic number.

It is an amenable number.

2005898477773 is a deficient number, since it is larger than the sum of its proper divisors (1835223855).

2005898477773 is a wasteful number, since it uses less digits than its factorization.

2005898477773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835223854.

The product of its (nonzero) digits is 165957120, while the sum is 67.

The spelling of 2005898477773 in words is "two trillion, five billion, eight hundred ninety-eight million, four hundred seventy-seven thousand, seven hundred seventy-three".