20623896254 has 16 divisors (see below), whose sum is σ = 33944121792. Its totient is φ = 9339122208.

The previous prime is 20623896247. The next prime is 20623896257. The reversal of 20623896254 is 45269832602.

It is a junction number, because it is equal to n+sod(n) for n = 20623896199 and 20623896208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623896257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7481894 + ... + 7484649.

It is an arithmetic number, because the mean of its divisors is an integer number (2121507612).

Almost surely, 2^20623896254 is an apocalyptic number.

20623896254 is a deficient number, since it is larger than the sum of its proper divisors (13320225538).

20623896254 is a wasteful number, since it uses less digits than its factorization.

20623896254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14966611.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 20623896254 in words is "twenty billion, six hundred twenty-three million, eight hundred ninety-six thousand, two hundred fifty-four".