2057436805 has 8 divisors (see below), whose sum is σ = 2470201344. Its totient is φ = 1645098000.

The previous prime is 2057436769. The next prime is 2057436817. The reversal of 2057436805 is 5086347502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2057436805 - 2¹³ = 2057428613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95701 + ... + 115210.

It is an arithmetic number, because the mean of its divisors is an integer number (308775168).

Almost surely, 2^2057436805 is an apocalyptic number.

It is an amenable number.

2057436805 is a deficient number, since it is larger than the sum of its proper divisors (412764539).

2057436805 is a wasteful number, since it uses less digits than its factorization.

2057436805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212867.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 2057436805 is about 45358.9771158918. The cubic root of 2057436805 is about 1271.8683734178.

The spelling of 2057436805 in words is "two billion, fifty-seven million, four hundred thirty-six thousand, eight hundred five".