87769933560 has 128 divisors (see below), whose sum is σ = 294183489600. Its totient is φ = 23275952640.

The previous prime is 87769933547. The next prime is 87769933577. The reversal of 87769933560 is 6533996778.

87769933560 is a `hidden beast` number, since 8 + 7 + 7 + 69 + 9 + 3 + 3 + 560 = 666.

It is a super-2 number, since 2×87769933560² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29019 + ... + 419978.

Almost surely, 2^87769933560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87769933560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147091744800).

87769933560 is an abundant number, since it is smaller than the sum of its proper divisors (206413556040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87769933560 is a wasteful number, since it uses less digits than its factorization.

87769933560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449198 (or 449188 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 63.

The spelling of 87769933560 in words is "eighty-seven billion, seven hundred sixty-nine million, nine hundred thirty-three thousand, five hundred sixty".