6626113397 has 4 divisors (see below), whose sum is σ = 6655048620. Its totient is φ = 6597178176.

The previous prime is 6626113357. The next prime is 6626113433. The reversal of 6626113397 is 7933116266.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3467560996 + 3158552401 = 58886^2 + 56201^2 .

It is a cyclic number.

It is not a de Polignac number, because 6626113397 - 2⁸ = 6626113141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6626113357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14467268 + ... + 14467725.

It is an arithmetic number, because the mean of its divisors is an integer number (1663762155).

Almost surely, 2^6626113397 is an apocalyptic number.

It is an amenable number.

6626113397 is a deficient number, since it is larger than the sum of its proper divisors (28935223).

6626113397 is a wasteful number, since it uses less digits than its factorization.

6626113397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28935222.

The product of its digits is 244944, while the sum is 44.

The square root of 6626113397 is about 81400.9422365614. The cubic root of 6626113397 is about 1878.2480847338.

The spelling of 6626113397 in words is "six billion, six hundred twenty-six million, one hundred thirteen thousand, three hundred ninety-seven".