8138726077633 has 4 divisors (see below), whose sum is σ = 8141553008640. Its totient is φ = 8135899146628.

The previous prime is 8138726077631. The next prime is 8138726077639. The reversal of 8138726077633 is 3367706278318.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8138726077633 - 2¹ = 8138726077631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8138726077631) 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, 1413461185 + ... + 1413466942.

It is an arithmetic number, because the mean of its divisors is an integer number (2035388252160).

Almost surely, 2^{8138726077633} is an apocalyptic number.

It is an amenable number.

8138726077633 is a deficient number, since it is larger than the sum of its proper divisors (2826931007).

8138726077633 is a wasteful number, since it uses less digits than its factorization.

8138726077633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826931006.

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 8138726077633 in words is "eight trillion, one hundred thirty-eight billion, seven hundred twenty-six million, seventy-seven thousand, six hundred thirty-three".