6912799144 has 8 divisors (see below), whose sum is σ = 12961498410. Its totient is φ = 3456399568.

The previous prime is 6912799073. The next prime is 6912799163. The reversal of 6912799144 is 4419972196.

It can be written as a sum of positive squares in only one way, i.e., 6893980900 + 18818244 = 83030^2 + 4338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 6912799091 and 6912799100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432049939 + ... + 432049954.

Almost surely, 2^6912799144 is an apocalyptic number.

It is an amenable number.

6912799144 is a deficient number, since it is larger than the sum of its proper divisors (6048699266).

6912799144 is a wasteful number, since it uses less digits than its factorization.

6912799144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864099899 (or 864099895 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 6912799144 is about 83143.2447286008. The cubic root of 6912799144 is about 1904.9546716871.

The spelling of 6912799144 in words is "six billion, nine hundred twelve million, seven hundred ninety-nine thousand, one hundred forty-four".