20445477470 has 64 divisors (see below), whose sum is σ = 40668868800. Its totient is φ = 7338624000.

The previous prime is 20445477467. The next prime is 20445477487. The reversal of 20445477470 is 7477454402.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3874754 + ... + 3880026.

It is an arithmetic number, because the mean of its divisors is an integer number (635451075).

Almost surely, 2^20445477470 is an apocalyptic number.

20445477470 is a deficient number, since it is larger than the sum of its proper divisors (20223391330).

20445477470 is a wasteful number, since it uses less digits than its factorization.

20445477470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5741.

The product of its (nonzero) digits is 878080, while the sum is 44.

The spelling of 20445477470 in words is "twenty billion, four hundred forty-five million, four hundred seventy-seven thousand, four hundred seventy".