1057771605609 has 12 divisors (see below), whose sum is σ = 1528001009652. Its totient is φ = 705130905600.

The previous prime is 1057771605589. The next prime is 1057771605623. The reversal of 1057771605609 is 9065061777501.

1057771605609 is a `hidden beast` number, since 1 + 0 + 5 + 7 + 7 + 71 + 6 + 0 + 560 + 9 = 666.

1057771605609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1007758992384 + 50012613225 = 1003872^2 + 223635^2 .

It is not a de Polignac number, because 1057771605609 - 2⁹ = 1057771605097 is a prime.

It is a super-2 number, since 2×1057771605609² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057771685609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4046632 + ... + 4300089.

It is an arithmetic number, because the mean of its divisors is an integer number (127333417471).

Almost surely, 2^{1057771605609} is an apocalyptic number.

It is an amenable number.

1057771605609 is a deficient number, since it is larger than the sum of its proper divisors (470229404043).

1057771605609 is a wasteful number, since it uses less digits than its factorization.

1057771605609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8360808 (or 8360805 counting only the distinct ones).

The product of its (nonzero) digits is 2778300, while the sum is 54.

The spelling of 1057771605609 in words is "one trillion, fifty-seven billion, seven hundred seventy-one million, six hundred five thousand, six hundred nine".