6251426645 has 32 divisors (see below), whose sum is σ = 8111431680. Its totient is φ = 4609846080.

The previous prime is 6251426641. The next prime is 6251426647. The reversal of 6251426645 is 5466241526.

It is not a de Polignac number, because 6251426645 - 2² = 6251426641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6251426641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1104212 + ... + 1109858.

It is an arithmetic number, because the mean of its divisors is an integer number (253482240).

Almost surely, 2^6251426645 is an apocalyptic number.

It is an amenable number.

6251426645 is a deficient number, since it is larger than the sum of its proper divisors (1860005035).

6251426645 is a wasteful number, since it uses less digits than its factorization.

6251426645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985.

The product of its digits is 345600, while the sum is 41.

The square root of 6251426645 is about 79065.9638845945. The cubic root of 6251426645 is about 1842.1558934606.

The spelling of 6251426645 in words is "six billion, two hundred fifty-one million, four hundred twenty-six thousand, six hundred forty-five".