7638901711801 has 4 divisors (see below), whose sum is σ = 7640856899152. Its totient is φ = 7636946524452.

The previous prime is 7638901711751. The next prime is 7638901711811. The reversal of 7638901711801 is 1081171098367.

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 7638901711801 - 2¹⁵ = 7638901679033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7638901711811) 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, 977587815 + ... + 977595628.

It is an arithmetic number, because the mean of its divisors is an integer number (1910214224788).

Almost surely, 2^{7638901711801} is an apocalyptic number.

It is an amenable number.

7638901711801 is a deficient number, since it is larger than the sum of its proper divisors (1955187351).

7638901711801 is a wasteful number, since it uses less digits than its factorization.

7638901711801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955187350.

The product of its (nonzero) digits is 508032, while the sum is 52.

The spelling of 7638901711801 in words is "seven trillion, six hundred thirty-eight billion, nine hundred one million, seven hundred eleven thousand, eight hundred one".