20315047460 has 48 divisors (see below), whose sum is σ = 43061893056. Its totient is φ = 8050111872.

The previous prime is 20315047457. The next prime is 20315047477. The reversal of 20315047460 is 6474051302.

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 15 ways as a sum of consecutive naturals, for example, 968807 + ... + 989553.

It is an arithmetic number, because the mean of its divisors is an integer number (897122772).

Almost surely, 2^20315047460 is an apocalyptic number.

20315047460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20315047460 is an abundant number, since it is smaller than the sum of its proper divisors (22746845596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20315047460 is a wasteful number, since it uses less digits than its factorization.

20315047460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212 (or 21210 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 20315047460 its reverse (6474051302), we get a palindrome (26789098762).

The spelling of 20315047460 in words is "twenty billion, three hundred fifteen million, forty-seven thousand, four hundred sixty".