87759621679 has 24 divisors (see below), whose sum is σ = 99047139840. Its totient is φ = 77593453056.

The previous prime is 87759621659. The next prime is 87759621689. The reversal of 87759621679 is 97612695778.

It is not a de Polignac number, because 87759621679 - 2³³ = 79169687087 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 (87759621659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168594 + ... + 451600.

It is an arithmetic number, because the mean of its divisors is an integer number (4126964160).

Almost surely, 2^87759621679 is an apocalyptic number.

87759621679 is a deficient number, since it is larger than the sum of its proper divisors (11287518161).

87759621679 is a wasteful number, since it uses less digits than its factorization.

87759621679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283107 (or 283090 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 67.

The spelling of 87759621679 in words is "eighty-seven billion, seven hundred fifty-nine million, six hundred twenty-one thousand, six hundred seventy-nine".