6460271393 has 4 divisors (see below), whose sum is σ = 6460490628. Its totient is φ = 6460052160.

The previous prime is 6460271369. The next prime is 6460271399. The reversal of 6460271393 is 3931720646.

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 4958553889 + 1501717504 = 70417^2 + 38752^2 .

It is a cyclic number.

It is not a de Polignac number, because 6460271393 - 2¹⁸ = 6460009249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6460271393.

It is not an unprimeable number, because it can be changed into a prime (6460271399) 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, 56996 + ... + 127157.

It is an arithmetic number, because the mean of its divisors is an integer number (1615122657).

Almost surely, 2^6460271393 is an apocalyptic number.

It is an amenable number.

6460271393 is a deficient number, since it is larger than the sum of its proper divisors (219235).

6460271393 is a wasteful number, since it uses less digits than its factorization.

6460271393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219234.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 6460271393 is about 80375.8134826640. The cubic root of 6460271393 is about 1862.4455626508.

The spelling of 6460271393 in words is "six billion, four hundred sixty million, two hundred seventy-one thousand, three hundred ninety-three".