20853799046 has 8 divisors (see below), whose sum is σ = 31282451400. Its totient is φ = 10426315248.

The previous prime is 20853799027. The next prime is 20853799063. The reversal of 20853799046 is 64099735802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246071 + ... + 319778.

It is an arithmetic number, because the mean of its divisors is an integer number (3910306425).

Almost surely, 2^20853799046 is an apocalyptic number.

20853799046 is a deficient number, since it is larger than the sum of its proper divisors (10428652354).

20853799046 is a wasteful number, since it uses less digits than its factorization.

20853799046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584278.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 20853799046 in words is "twenty billion, eight hundred fifty-three million, seven hundred ninety-nine thousand, forty-six".