87766042553 has 8 divisors (see below), whose sum is σ = 103539663360. Its totient is φ = 72801325440.

The previous prime is 87766042541. The next prime is 87766042591. The reversal of 87766042553 is 35524066778.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87766042553 - 2⁸ = 87766042297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87766042495 and 87766042504.

It is not an unprimeable number, because it can be changed into a prime (87766042523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202225688 + ... + 202226121.

It is an arithmetic number, because the mean of its divisors is an integer number (12942457920).

Almost surely, 2^87766042553 is an apocalyptic number.

It is an amenable number.

87766042553 is a deficient number, since it is larger than the sum of its proper divisors (15773620807).

87766042553 is a wasteful number, since it uses less digits than its factorization.

87766042553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404451847.

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 87766042553 in words is "eighty-seven billion, seven hundred sixty-six million, forty-two thousand, five hundred fifty-three".