20620306228487 has 48 divisors (see below), whose sum is σ = 25136827654080. Its totient is φ = 16566499786752.

The previous prime is 20620306228471. The next prime is 20620306228513. The reversal of 20620306228487 is 78482260302602.

It is not a de Polignac number, because 20620306228487 - 2⁴ = 20620306228471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620306228387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1273715189 + ... + 1273731377.

It is an arithmetic number, because the mean of its divisors is an integer number (523683909460).

Almost surely, 2^{20620306228487} is an apocalyptic number.

20620306228487 is a deficient number, since it is larger than the sum of its proper divisors (4516521425593).

20620306228487 is a wasteful number, since it uses less digits than its factorization.

20620306228487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18780 (or 18763 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 20620306228487 in words is "twenty trillion, six hundred twenty billion, three hundred six million, two hundred twenty-eight thousand, four hundred eighty-seven".