6815197352 has 8 divisors (see below), whose sum is σ = 12778495050. Its totient is φ = 3407598672.

The previous prime is 6815197309. The next prime is 6815197357. The reversal of 6815197352 is 2537915186.

It can be written as a sum of positive squares in only one way, i.e., 6602212516 + 212984836 = 81254^2 + 14594^2 .

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 = 6815197297 and 6815197306.

It is not an unprimeable number, because it can be changed into a prime (6815197357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425949827 + ... + 425949842.

Almost surely, 2^6815197352 is an apocalyptic number.

It is an amenable number.

6815197352 is a deficient number, since it is larger than the sum of its proper divisors (5963297698).

6815197352 is a wasteful number, since it uses less digits than its factorization.

6815197352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851899675 (or 851899671 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 6815197352 is about 82554.2085662506. The cubic root of 6815197352 is about 1895.9467937439.

The spelling of 6815197352 in words is "six billion, eight hundred fifteen million, one hundred ninety-seven thousand, three hundred fifty-two".