61057773441 has 36 divisors (see below), whose sum is σ = 105366503892. Its totient is φ = 33947169984.

The previous prime is 61057773419. The next prime is 61057773457. The reversal of 61057773441 is 14437775016.

61057773441 is a `hidden beast` number, since 6 + 1 + 0 + 577 + 7 + 34 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21925021041 + 39132752400 = 148071^2 + 197820^2 .

It is not a de Polignac number, because 61057773441 - 2⁹ = 61057772929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61057773481) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1854670 + ... + 1887303.

Almost surely, 2^61057773441 is an apocalyptic number.

It is an amenable number.

61057773441 is a deficient number, since it is larger than the sum of its proper divisors (44308730451).

61057773441 is a wasteful number, since it uses less digits than its factorization.

61057773441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742030 (or 3742020 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 61057773441 in words is "sixty-one billion, fifty-seven million, seven hundred seventy-three thousand, four hundred forty-one".