6459894077 has 12 divisors (see below), whose sum is σ = 8092615356. Its totient is φ = 5111124480.

The previous prime is 6459894061. The next prime is 6459894097. The reversal of 6459894077 is 7704989546.

It can be written as a sum of positive squares in 2 ways, for example, as 2168858041 + 4291036036 = 46571^2 + 65506^2 .

It is not a de Polignac number, because 6459894077 - 2⁴ = 6459894061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6459894017) 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 11 ways as a sum of consecutive naturals, for example, 5069924 + ... + 5071197.

It is an arithmetic number, because the mean of its divisors is an integer number (674384613).

Almost surely, 2^6459894077 is an apocalyptic number.

It is an amenable number.

6459894077 is a deficient number, since it is larger than the sum of its proper divisors (1632721279).

6459894077 is a wasteful number, since it uses less digits than its factorization.

6459894077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141148 (or 10141141 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The square root of 6459894077 is about 80373.4662497519. The cubic root of 6459894077 is about 1862.4093028639.

The spelling of 6459894077 in words is "six billion, four hundred fifty-nine million, eight hundred ninety-four thousand, seventy-seven".