20094813945 has 24 divisors (see below), whose sum is σ = 34834854600. Its totient is φ = 10716051456.

The previous prime is 20094813929. The next prime is 20094813961. The reversal of 20094813945 is 54931849002.

It is an interprime number because it is at equal distance from previous prime (20094813929) and next prime (20094813961).

It can be written as a sum of positive squares in 4 ways, for example, as 104530176 + 19990283769 = 10224^2 + 141387^2 .

It is not a de Polignac number, because 20094813945 - 2⁴ = 20094813929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20094813945.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 519951 + ... + 557259.

It is an arithmetic number, because the mean of its divisors is an integer number (1451452275).

Almost surely, 2^20094813945 is an apocalyptic number.

It is an amenable number.

20094813945 is a deficient number, since it is larger than the sum of its proper divisors (14740040655).

20094813945 is a wasteful number, since it uses less digits than its factorization.

20094813945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49289 (or 49286 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 20094813945 in words is "twenty billion, ninety-four million, eight hundred thirteen thousand, nine hundred forty-five".