6626746401 has 32 divisors (see below), whose sum is σ = 9900817920. Its totient is φ = 3907612800.

The previous prime is 6626746369. The next prime is 6626746429. The reversal of 6626746401 is 1046476266.

It is a happy number.

It is not a de Polignac number, because 6626746401 - 2⁵ = 6626746369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6626726401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 506326 + ... + 519248.

It is an arithmetic number, because the mean of its divisors is an integer number (309400560).

Almost surely, 2^6626746401 is an apocalyptic number.

It is an amenable number.

6626746401 is a deficient number, since it is larger than the sum of its proper divisors (3274071519).

6626746401 is a wasteful number, since it uses less digits than its factorization.

6626746401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 6626746401 is about 81404.8303296555. The cubic root of 6626746401 is about 1878.3078935850.

The spelling of 6626746401 in words is "six billion, six hundred twenty-six million, seven hundred forty-six thousand, four hundred one".