6402764197 has 4 divisors (see below), whose sum is σ = 6575811916. Its totient is φ = 6229716480.

The previous prime is 6402764189. The next prime is 6402764209. The reversal of 6402764197 is 7914672046.

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 5001459841 + 1401304356 = 70721^2 + 37434^2 .

It is a cyclic number.

It is not a de Polignac number, because 6402764197 - 2³ = 6402764189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402764107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86523804 + ... + 86523877.

It is an arithmetic number, because the mean of its divisors is an integer number (1643952979).

Almost surely, 2^6402764197 is an apocalyptic number.

It is an amenable number.

6402764197 is a deficient number, since it is larger than the sum of its proper divisors (173047719).

6402764197 is a wasteful number, since it uses less digits than its factorization.

6402764197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173047718.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 6402764197 is about 80017.2743662267. The cubic root of 6402764197 is about 1856.9027921788.

The spelling of 6402764197 in words is "six billion, four hundred two million, seven hundred sixty-four thousand, one hundred ninety-seven".