9561787045 has 4 divisors (see below), whose sum is σ = 11474144460. Its totient is φ = 7649429632.

The previous prime is 9561787009. The next prime is 9561787057. The reversal of 9561787045 is 5407871659.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5407871659 = 14821 ⋅364879.

It can be written as a sum of positive squares in 2 ways, for example, as 1980428004 + 7581359041 = 44502^2 + 87071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9561787045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9561786983 and 9561787001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956178700 + ... + 956178709.

It is an arithmetic number, because the mean of its divisors is an integer number (2868536115).

Almost surely, 2^9561787045 is an apocalyptic number.

It is an amenable number.

9561787045 is a deficient number, since it is larger than the sum of its proper divisors (1912357415).

9561787045 is a wasteful number, since it uses less digits than its factorization.

9561787045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912357414.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The square root of 9561787045 is about 97784.3905999316. The cubic root of 9561787045 is about 2122.4934353847.

The spelling of 9561787045 in words is "nine billion, five hundred sixty-one million, seven hundred eighty-seven thousand, forty-five".