6376777663 has 4 divisors (see below), whose sum is σ = 6712397560. Its totient is φ = 6041157768.

The previous prime is 6376777651. The next prime is 6376777727. The reversal of 6376777663 is 3667776736.

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

It is a de Polignac number, because none of the positive numbers 2^k-6376777663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6376777598 and 6376777607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6376777633) 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, 167809920 + ... + 167809957.

It is an arithmetic number, because the mean of its divisors is an integer number (1678099390).

Almost surely, 2^6376777663 is an apocalyptic number.

6376777663 is a deficient number, since it is larger than the sum of its proper divisors (335619897).

6376777663 is a wasteful number, since it uses less digits than its factorization.

6376777663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335619896.

The product of its digits is 28005264, while the sum is 58.

The square root of 6376777663 is about 79854.7284949364. The cubic root of 6376777663 is about 1854.3872173319.

The spelling of 6376777663 in words is "six billion, three hundred seventy-six million, seven hundred seventy-seven thousand, six hundred sixty-three".