20425400054419 has 4 divisors (see below), whose sum is σ = 20547707839344. Its totient is φ = 20303092269496.

The previous prime is 20425400054377. The next prime is 20425400054429. The reversal of 20425400054419 is 91445000452402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20425400054419 - 2¹⁷ = 20425399923347 is a prime.

It is a super-2 number, since 2×20425400054419² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20425400054429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61153892212 + ... + 61153892545.

It is an arithmetic number, because the mean of its divisors is an integer number (5136926959836).

Almost surely, 2^{20425400054419} is an apocalyptic number.

20425400054419 is a deficient number, since it is larger than the sum of its proper divisors (122307784925).

20425400054419 is a wasteful number, since it uses less digits than its factorization.

20425400054419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122307784924.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 20425400054419 in words is "twenty trillion, four hundred twenty-five billion, four hundred million, fifty-four thousand, four hundred nineteen".