35851560961 has 4 divisors (see below), whose sum is σ = 36109486000. Its totient is φ = 35593635924.

The previous prime is 35851560923. The next prime is 35851560971. The reversal of 35851560961 is 16906515853.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16906515853 = 63863 ⋅264731.

It is a cyclic number.

It is not a de Polignac number, because 35851560961 - 2⁹ = 35851560449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35851560971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128962311 + ... + 128962588.

It is an arithmetic number, because the mean of its divisors is an integer number (9027371500).

Almost surely, 2^35851560961 is an apocalyptic number.

It is an amenable number.

35851560961 is a deficient number, since it is larger than the sum of its proper divisors (257925039).

35851560961 is a wasteful number, since it uses less digits than its factorization.

35851560961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257925038.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 35851560961 in words is "thirty-five billion, eight hundred fifty-one million, five hundred sixty thousand, nine hundred sixty-one".