7872554552787 has 24 divisors (see below), whose sum is σ = 11382792509088. Its totient is φ = 5243143651200.

The previous prime is 7872554552747. The next prime is 7872554552789.

7872554552787 is a `hidden beast` number, since 7 + 8 + 7 + 2 + 5 + 545 + 5 + 2 + 78 + 7 = 666.

7872554552787 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7872554552787 - 2¹⁶ = 7872554487251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7872554552789) 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 in 23 ways as a sum of consecutive naturals, for example, 163575087 + ... + 163623207.

It is an arithmetic number, because the mean of its divisors is an integer number (474283021212).

Almost surely, 2^{7872554552787} is an apocalyptic number.

7872554552787 is a deficient number, since it is larger than the sum of its proper divisors (3510237956301).

7872554552787 is a wasteful number, since it uses less digits than its factorization.

7872554552787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65851 (or 65848 counting only the distinct ones).

The product of its digits is 1536640000, while the sum is 72.

The spelling of 7872554552787 in words is "seven trillion, eight hundred seventy-two billion, five hundred fifty-four million, five hundred fifty-two thousand, seven hundred eighty-seven".