20625587841 has 16 divisors (see below), whose sum is σ = 29406786048. Its totient is φ = 12813408000.

The previous prime is 20625587839. The next prime is 20625587863. The reversal of 20625587841 is 14878552602.

It is not a de Polignac number, because 20625587841 - 2¹ = 20625587839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20625580841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1996945 + ... + 2007246.

It is an arithmetic number, because the mean of its divisors is an integer number (1837924128).

Almost surely, 2^20625587841 is an apocalyptic number.

It is an amenable number.

20625587841 is a deficient number, since it is larger than the sum of its proper divisors (8781198207).

20625587841 is a wasteful number, since it uses less digits than its factorization.

20625587841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004312.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 20625587841 in words is "twenty billion, six hundred twenty-five million, five hundred eighty-seven thousand, eight hundred forty-one".