6428270813 has 16 divisors (see below), whose sum is σ = 6770902320. Its totient is φ = 6094886400.

The previous prime is 6428270789. The next prime is 6428270833. The reversal of 6428270813 is 3180728246.

It can be written as a sum of positive squares in 8 ways, for example, as 149768644 + 6278502169 = 12238^2 + 79237^2 .

It is a cyclic number.

It is not a de Polignac number, because 6428270813 - 2²² = 6424076509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428270833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680443 + ... + 1684263.

It is an arithmetic number, because the mean of its divisors is an integer number (423181395).

Almost surely, 2^6428270813 is an apocalyptic number.

It is an amenable number.

6428270813 is a deficient number, since it is larger than the sum of its proper divisors (342631507).

6428270813 is a wasteful number, since it uses less digits than its factorization.

6428270813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 6428270813 is about 80176.4978843551. The cubic root of 6428270813 is about 1859.3652990113.

The spelling of 6428270813 in words is "six billion, four hundred twenty-eight million, two hundred seventy thousand, eight hundred thirteen".