2135409058866 has 32 divisors (see below), whose sum is σ = 4368692183040. Its totient is φ = 695657982096.

The previous prime is 2135409058847. The next prime is 2135409058879. The reversal of 2135409058866 is 6688509045312.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20862186 + ... + 20964293.

It is an arithmetic number, because the mean of its divisors is an integer number (136521630720).

Almost surely, 2^{2135409058866} is an apocalyptic number.

2135409058866 is an abundant number, since it is smaller than the sum of its proper divisors (2233283124174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135409058866 is a wasteful number, since it uses less digits than its factorization.

2135409058866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41826678.

The product of its (nonzero) digits is 12441600, while the sum is 57.

The spelling of 2135409058866 in words is "two trillion, one hundred thirty-five billion, four hundred nine million, fifty-eight thousand, eight hundred sixty-six".