6378534131776 has 21 divisors (see below), whose sum is σ = 12657443761389. Its totient is φ = 3189256963584.

The previous prime is 6378534131759. The next prime is 6378534131807. The reversal of 6378534131776 is 6771314358736.

The square root of 6378534131776 is 2525576.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5859304360000 + 519229771776 = 2420600^2 + 720576^2 .

It is a super-3 number, since 3×6378534131776³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20046760 + ... + 20362456.

It is an arithmetic number, because the mean of its divisors is an integer number (602735417209).

Almost surely, 2^{6378534131776} is an apocalyptic number.

6378534131776 is the 2525576-th square number.

It is an amenable number.

6378534131776 is a deficient number, since it is larger than the sum of its proper divisors (6278909629613).

6378534131776 is an frugal number, since it uses more digits than its factorization.

6378534131776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631406 (or 315699 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 61.

The spelling of 6378534131776 in words is "six trillion, three hundred seventy-eight billion, five hundred thirty-four million, one hundred thirty-one thousand, seven hundred seventy-six".