6522724076138 has 4 divisors (see below), whose sum is σ = 9784086114210. Its totient is φ = 3261362038068.

The previous prime is 6522724076137. The next prime is 6522724076147. The reversal of 6522724076138 is 8316704272256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5077662836689 + 1445061239449 = 2253367^2 + 1202107^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6522724076138.

It is not an unprimeable number, because it can be changed into a prime (6522724076137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630681019033 + ... + 1630681019036.

Almost surely, 2^{6522724076138} is an apocalyptic number.

6522724076138 is a deficient number, since it is larger than the sum of its proper divisors (3261362038072).

6522724076138 is a wasteful number, since it uses less digits than its factorization.

6522724076138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261362038071.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 6522724076138 in words is "six trillion, five hundred twenty-two billion, seven hundred twenty-four million, seventy-six thousand, one hundred thirty-eight".