7939887628811 has 8 divisors (see below), whose sum is σ = 8627382144000. Its totient is φ = 7279353682920.

The previous prime is 7939887628781. The next prime is 7939887628817. The reversal of 7939887628811 is 1188267889397.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7939887628811 - 2¹⁰ = 7939887627787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7939887628817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6740141711 + ... + 6740142888.

It is an arithmetic number, because the mean of its divisors is an integer number (1078422768000).

Almost surely, 2^{7939887628811} is an apocalyptic number.

7939887628811 is a deficient number, since it is larger than the sum of its proper divisors (687494515189).

7939887628811 is a wasteful number, since it uses less digits than its factorization.

7939887628811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480284649.

The product of its digits is 585252864, while the sum is 77.

The spelling of 7939887628811 in words is "seven trillion, nine hundred thirty-nine billion, eight hundred eighty-seven million, six hundred twenty-eight thousand, eight hundred eleven".