87724635736 has 16 divisors (see below), whose sum is σ = 166179401640. Its totient is φ = 43410128640.

The previous prime is 87724635727. The next prime is 87724635769. The reversal of 87724635736 is 63753642778.

It is a super-2 number, since 2×87724635736² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56522830 + ... + 56524381.

Almost surely, 2^87724635736 is an apocalyptic number.

It is an amenable number.

87724635736 is a deficient number, since it is larger than the sum of its proper divisors (78454765904).

87724635736 is a wasteful number, since it uses less digits than its factorization.

87724635736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113047314 (or 113047310 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 58.

The spelling of 87724635736 in words is "eighty-seven billion, seven hundred twenty-four million, six hundred thirty-five thousand, seven hundred thirty-six".