87873486951 has 4 divisors (see below), whose sum is σ = 117164649272. Its totient is φ = 58582324632.

The previous prime is 87873486937. The next prime is 87873486977. The reversal of 87873486951 is 15968437878.

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

It is not a de Polignac number, because 87873486951 - 2⁹ = 87873486439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87873485951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14645581156 + ... + 14645581161.

It is an arithmetic number, because the mean of its divisors is an integer number (29291162318).

Almost surely, 2^87873486951 is an apocalyptic number.

87873486951 is a deficient number, since it is larger than the sum of its proper divisors (29291162321).

87873486951 is a wasteful number, since it uses less digits than its factorization.

87873486951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29291162320.

The product of its digits is 81285120, while the sum is 66.

The spelling of 87873486951 in words is "eighty-seven billion, eight hundred seventy-three million, four hundred eighty-six thousand, nine hundred fifty-one".