20589412465 has 8 divisors (see below), whose sum is σ = 24855243840. Its totient is φ = 16372897392.

The previous prime is 20589412463. The next prime is 20589412471. The reversal of 20589412465 is 56421498502.

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 20589412465 - 2¹ = 20589412463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20589412463) 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, 12328155 + ... + 12329824.

It is an arithmetic number, because the mean of its divisors is an integer number (3106905480).

Almost surely, 2^20589412465 is an apocalyptic number.

It is an amenable number.

20589412465 is a deficient number, since it is larger than the sum of its proper divisors (4265831375).

20589412465 is a wasteful number, since it uses less digits than its factorization.

20589412465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24658151.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 20589412465 in words is "twenty billion, five hundred eighty-nine million, four hundred twelve thousand, four hundred sixty-five".