87784601456 has 20 divisors (see below), whose sum is σ = 170102487000. Its totient is φ = 43887185472.

The previous prime is 87784601449. The next prime is 87784601507. The reversal of 87784601456 is 65410648778.

It is a happy number.

It is a super-3 number, since 3×87784601456³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 176171 + ... + 454538.

It is an arithmetic number, because the mean of its divisors is an integer number (8505124350).

Almost surely, 2^87784601456 is an apocalyptic number.

It is an amenable number.

87784601456 is a deficient number, since it is larger than the sum of its proper divisors (82317885544).

87784601456 is a wasteful number, since it uses less digits than its factorization.

87784601456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639416 (or 639410 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 87784601456 in words is "eighty-seven billion, seven hundred eighty-four million, six hundred one thousand, four hundred fifty-six".