6536123764 has 6 divisors (see below), whose sum is σ = 11438216594. Its totient is φ = 3268061880.

The previous prime is 6536123753. The next prime is 6536123771. The reversal of 6536123764 is 4673216356.

It can be written as a sum of positive squares in only one way, i.e., 5875222500 + 660901264 = 76650^2 + 25708^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6536123764.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817015467 + ... + 817015474.

Almost surely, 2^6536123764 is an apocalyptic number.

It is an amenable number.

6536123764 is a deficient number, since it is larger than the sum of its proper divisors (4902092830).

6536123764 is a wasteful number, since it uses less digits than its factorization.

6536123764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634030945 (or 1634030943 counting only the distinct ones).

The product of its digits is 544320, while the sum is 43.

The square root of 6536123764 is about 80846.2971570127. The cubic root of 6536123764 is about 1869.7064333693.

The spelling of 6536123764 in words is "six billion, five hundred thirty-six million, one hundred twenty-three thousand, seven hundred sixty-four".