469978875805 has 4 divisors (see below), whose sum is σ = 563974650972. Its totient is φ = 375983100640.

The previous prime is 469978875787. The next prime is 469978875809. The reversal of 469978875805 is 508578879964.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 242894222649 + 227084653156 = 492843^2 + 476534^2 .

It is not a de Polignac number, because 469978875805 - 2²¹ = 469976778653 is a prime.

It is a super-2 number, since 2×469978875805² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469978875809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46997887576 + ... + 46997887585.

It is an arithmetic number, because the mean of its divisors is an integer number (140993662743).

Almost surely, 2^469978875805 is an apocalyptic number.

It is an amenable number.

469978875805 is a deficient number, since it is larger than the sum of its proper divisors (93995775167).

469978875805 is an equidigital number, since it uses as much as digits as its factorization.

469978875805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93995775166.

The product of its (nonzero) digits is 1219276800, while the sum is 76.

The spelling of 469978875805 in words is "four hundred sixty-nine billion, nine hundred seventy-eight million, eight hundred seventy-five thousand, eight hundred five".