20419224945 has 32 divisors (see below), whose sum is σ = 38625534720. Its totient is φ = 9012622080.

The previous prime is 20419224937. The next prime is 20419224953. The reversal of 20419224945 is 54942291402.

It is an interprime number because it is at equal distance from previous prime (20419224937) and next prime (20419224953).

It is not a de Polignac number, because 20419224945 - 2³ = 20419224937 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20419224897 and 20419224906.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3349866 + ... + 3355955.

It is an arithmetic number, because the mean of its divisors is an integer number (1207047960).

Almost surely, 2^20419224945 is an apocalyptic number.

It is an amenable number.

20419224945 is a deficient number, since it is larger than the sum of its proper divisors (18206309775).

20419224945 is a wasteful number, since it uses less digits than its factorization.

20419224945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705865.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 20419224945 in words is "twenty billion, four hundred nineteen million, two hundred twenty-four thousand, nine hundred forty-five".