6477787445903 has 4 divisors (see below), whose sum is σ = 6496348441800. Its totient is φ = 6459226450008.

The previous prime is 6477787445849. The next prime is 6477787445917. The reversal of 6477787445903 is 3095447877746.

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 6477787445903 - 2²⁴ = 6477770668687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6477787445953) 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, 9280497425 + ... + 9280498122.

It is an arithmetic number, because the mean of its divisors is an integer number (1624087110450).

Almost surely, 2^{6477787445903} is an apocalyptic number.

6477787445903 is a deficient number, since it is larger than the sum of its proper divisors (18560995897).

6477787445903 is a wasteful number, since it uses less digits than its factorization.

6477787445903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18560995896.

The product of its (nonzero) digits is 995742720, while the sum is 71.

The spelling of 6477787445903 in words is "six trillion, four hundred seventy-seven billion, seven hundred eighty-seven million, four hundred forty-five thousand, nine hundred three".