20623238673 has 32 divisors (see below), whose sum is σ = 29519922432. Its totient is φ = 12773376000.

The previous prime is 20623238639. The next prime is 20623238677. The reversal of 20623238673 is 37683232602.

It is not a de Polignac number, because 20623238673 - 2⁸ = 20623238417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20623238677) 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 31 ways as a sum of consecutive naturals, for example, 1527633 + ... + 1541073.

It is an arithmetic number, because the mean of its divisors is an integer number (922497576).

Almost surely, 2^20623238673 is an apocalyptic number.

20623238673 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20623238673 is a deficient number, since it is larger than the sum of its proper divisors (8896683759).

20623238673 is a wasteful number, since it uses less digits than its factorization.

20623238673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14105.

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 20623238673 in words is "twenty billion, six hundred twenty-three million, two hundred thirty-eight thousand, six hundred seventy-three".