40659486489 has 20 divisors (see below), whose sum is σ = 60838381824. Its totient is φ = 27061635384.

The previous prime is 40659486419. The next prime is 40659486521. The reversal of 40659486489 is 98468495604.

40659486489 is a `hidden beast` number, since 4 + 0 + 65 + 94 + 8 + 6 + 489 = 666.

It is not a de Polignac number, because 40659486489 - 2⁸ = 40659486233 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40659486419) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 364317 + ... + 462650.

Almost surely, 2^40659486489 is an apocalyptic number.

It is an amenable number.

40659486489 is a deficient number, since it is larger than the sum of its proper divisors (20178895335).

40659486489 is an equidigital number, since it uses as much as digits as its factorization.

40659486489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827586 (or 827577 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 63.

The spelling of 40659486489 in words is "forty billion, six hundred fifty-nine million, four hundred eighty-six thousand, four hundred eighty-nine".