1961473677057 has 12 divisors (see below), whose sum is σ = 2833273222884. Its totient is φ = 1307633671680.

The previous prime is 1961473677049. The next prime is 1961473677089. The reversal of 1961473677057 is 7507763741691.

1961473677057 is a `hidden beast` number, since 1 + 9 + 614 + 7 + 3 + 6 + 7 + 7 + 0 + 5 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1557294343056 + 404179334001 = 1247916^2 + 635751^2 .

It is not a de Polignac number, because 1961473677057 - 2³ = 1961473677049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1961473676985 and 1961473677003.

It is not an unprimeable number, because it can be changed into a prime (1961473677047) 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 11 ways as a sum of consecutive naturals, for example, 454608 + ... + 2032145.

It is an arithmetic number, because the mean of its divisors is an integer number (236106101907).

Almost surely, 2^{1961473677057} is an apocalyptic number.

It is an amenable number.

1961473677057 is a deficient number, since it is larger than the sum of its proper divisors (871799545827).

1961473677057 is a wasteful number, since it uses less digits than its factorization.

1961473677057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574400 (or 2574397 counting only the distinct ones).

The product of its (nonzero) digits is 46675440, while the sum is 63.

The spelling of 1961473677057 in words is "one trillion, nine hundred sixty-one billion, four hundred seventy-three million, six hundred seventy-seven thousand, fifty-seven".