877000645999 has 4 divisors (see below), whose sum is σ = 877289421064. Its totient is φ = 876711870936.

The previous prime is 877000645991. The next prime is 877000646009. The reversal of 877000645999 is 999546000778.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 877000645999 - 2³ = 877000645991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 877000645999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (877000645991) 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, 144382977 + ... + 144389050.

It is an arithmetic number, because the mean of its divisors is an integer number (219322355266).

Almost surely, 2^877000645999 is an apocalyptic number.

877000645999 is a deficient number, since it is larger than the sum of its proper divisors (288775065).

877000645999 is a wasteful number, since it uses less digits than its factorization.

877000645999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288775064.

The product of its (nonzero) digits is 34292160, while the sum is 64.

The spelling of 877000645999 in words is "eight hundred seventy-seven billion, six hundred forty-five thousand, nine hundred ninety-nine".