6627634513 has 4 divisors (see below), whose sum is σ = 6695960740. Its totient is φ = 6559308288.

The previous prime is 6627634459. The next prime is 6627634523. The reversal of 6627634513 is 3154367266.

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 1669784769 + 4957849744 = 40863^2 + 70412^2 .

It is a cyclic number.

It is not a de Polignac number, because 6627634513 - 2¹³ = 6627626321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6627634513.

It is not an unprimeable number, because it can be changed into a prime (6627634523) 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, 34162968 + ... + 34163161.

It is an arithmetic number, because the mean of its divisors is an integer number (1673990185).

Almost surely, 2^6627634513 is an apocalyptic number.

It is an amenable number.

6627634513 is a deficient number, since it is larger than the sum of its proper divisors (68326227).

6627634513 is an equidigital number, since it uses as much as digits as its factorization.

6627634513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68326226.

The product of its digits is 544320, while the sum is 43.

The square root of 6627634513 is about 81410.2850566192. The cubic root of 6627634513 is about 1878.3917996813.

The spelling of 6627634513 in words is "six billion, six hundred twenty-seven million, six hundred thirty-four thousand, five hundred thirteen".