20958735344 has 20 divisors (see below), whose sum is σ = 40663428624. Its totient is φ = 10464947328.

The previous prime is 20958735337. The next prime is 20958735383. The reversal of 20958735344 is 44353785902.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20958735292 and 20958735301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889277 + ... + 912540.

Almost surely, 2^20958735344 is an apocalyptic number.

It is an amenable number.

20958735344 is a deficient number, since it is larger than the sum of its proper divisors (19704693280).

20958735344 is a wasteful number, since it uses less digits than its factorization.

20958735344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802552 (or 1802546 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 20958735344 in words is "twenty billion, nine hundred fifty-eight million, seven hundred thirty-five thousand, three hundred forty-four".