20219918622673 has 16 divisors (see below), whose sum is σ = 25684895408256. Its totient is φ = 15458501859840.

The previous prime is 20219918622653. The next prime is 20219918622781. The reversal of 20219918622673 is 37622681991202.

It is a cyclic number.

It is not a de Polignac number, because 20219918622673 - 2²⁵ = 20219885068241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20219918622653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2477319936 + ... + 2477328097.

It is an arithmetic number, because the mean of its divisors is an integer number (1605305963016).

Almost surely, 2^{20219918622673} is an apocalyptic number.

It is an amenable number.

20219918622673 is a deficient number, since it is larger than the sum of its proper divisors (5464976785583).

20219918622673 is a wasteful number, since it uses less digits than its factorization.

20219918622673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954648104.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 20219918622673 in words is "twenty trillion, two hundred nineteen billion, nine hundred eighteen million, six hundred twenty-two thousand, six hundred seventy-three".