6500347978084 has 27 divisors (see below), whose sum is σ = 11415088942131. Its totient is φ = 3238932899640.

The previous prime is 6500347977997. The next prime is 6500347978087. The reversal of 6500347978084 is 4808797430056.

It is a happy number.

The square root of 6500347978084 is 2549578.

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

It is a super-2 number, since 2×6500347978084² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6500347978087) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1585835467 + ... + 1585839565.

Almost surely, 2^{6500347978084} is an apocalyptic number.

6500347978084 is the 2549578-th square number.

It is an amenable number.

6500347978084 is a deficient number, since it is larger than the sum of its proper divisors (4914740964047).

6500347978084 is an frugal number, since it uses more digits than its factorization.

6500347978084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824 (or 4412 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 6500347978084 in words is "six trillion, five hundred billion, three hundred forty-seven million, nine hundred seventy-eight thousand, eighty-four".