20623461504 has 32 divisors (see below), whose sum is σ = 54781070640. Its totient is φ = 6874487040.

The previous prime is 20623461473. The next prime is 20623461511. The reversal of 20623461504 is 40516432602.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26853082 + ... + 26853849.

Almost surely, 2^20623461504 is an apocalyptic number.

20623461504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20623461504 is an abundant number, since it is smaller than the sum of its proper divisors (34157609136).

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

20623461504 is an equidigital number, since it uses as much as digits as its factorization.

20623461504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53706948 (or 53706936 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 20623461504 in words is "twenty billion, six hundred twenty-three million, four hundred sixty-one thousand, five hundred four".