89649656487 has 12 divisors (see below), whose sum is σ = 136309419480. Its totient is φ = 56620835568.

The previous prime is 89649656443. The next prime is 89649656491. The reversal of 89649656487 is 78465694698.

89649656487 is a `hidden beast` number, since 8 + 9 + 6 + 4 + 96 + 56 + 487 = 666.

It is not a de Polignac number, because 89649656487 - 2⁸ = 89649656231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89649656497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262133328 + ... + 262133669.

It is an arithmetic number, because the mean of its divisors is an integer number (11359118290).

Almost surely, 2^89649656487 is an apocalyptic number.

89649656487 is a deficient number, since it is larger than the sum of its proper divisors (46659762993).

89649656487 is a wasteful number, since it uses less digits than its factorization.

89649656487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524267022 (or 524267019 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 89649656487 in words is "eighty-nine billion, six hundred forty-nine million, six hundred fifty-six thousand, four hundred eighty-seven".