6526379961 has 12 divisors (see below), whose sum is σ = 9445094100. Its totient is φ = 4342565760.

The previous prime is 6526379957. The next prime is 6526379963. The reversal of 6526379961 is 1699736256.

It can be written as a sum of positive squares in 2 ways, for example, as 1937672361 + 4588707600 = 44019^2 + 67740^2 .

It is not a de Polignac number, because 6526379961 - 2² = 6526379957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6526379898 and 6526379907.

It is not an unprimeable number, because it can be changed into a prime (6526379963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 691236 + ... + 700613.

It is an arithmetic number, because the mean of its divisors is an integer number (787091175).

Almost surely, 2^6526379961 is an apocalyptic number.

It is an amenable number.

6526379961 is a deficient number, since it is larger than the sum of its proper divisors (2918714139).

6526379961 is a wasteful number, since it uses less digits than its factorization.

6526379961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392376 (or 1392373 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 6526379961 is about 80786.0133995978. The cubic root of 6526379961 is about 1868.7768757170.

The spelling of 6526379961 in words is "six billion, five hundred twenty-six million, three hundred seventy-nine thousand, nine hundred sixty-one".