20395753450 has 24 divisors (see below), whose sum is σ = 37993728960. Its totient is φ = 8145908400.

The previous prime is 20395753397. The next prime is 20395753463. The reversal of 20395753450 is 5435759302.

It is a junction number, because it is equal to n+sod(n) for n = 20395753397 and 20395753406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276546 + ... + 342445.

It is an arithmetic number, because the mean of its divisors is an integer number (1583072040).

Almost surely, 2^20395753450 is an apocalyptic number.

20395753450 is a deficient number, since it is larger than the sum of its proper divisors (17597975510).

20395753450 is a wasteful number, since it uses less digits than its factorization.

20395753450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619662 (or 619657 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 43.

The spelling of 20395753450 in words is "twenty billion, three hundred ninety-five million, seven hundred fifty-three thousand, four hundred fifty".