6477776536 has 64 divisors (see below), whose sum is σ = 15176367360. Its totient is φ = 2518224000.

The previous prime is 6477776483. The next prime is 6477776563. The reversal of 6477776536 is 6356777746.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272571 + ... + 295381.

It is an arithmetic number, because the mean of its divisors is an integer number (237130740).

Almost surely, 2^6477776536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6477776536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7588183680).

6477776536 is an abundant number, since it is smaller than the sum of its proper divisors (8698590824).

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

6477776536 is a wasteful number, since it uses less digits than its factorization.

6477776536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23296 (or 23292 counting only the distinct ones).

The product of its digits is 31116960, while the sum is 58.

The square root of 6477776536 is about 80484.6354032868. The cubic root of 6477776536 is about 1864.1262440054.

The spelling of 6477776536 in words is "six billion, four hundred seventy-seven million, seven hundred seventy-six thousand, five hundred thirty-six".