20319863044 has 72 divisors (see below), whose sum is σ = 40602371040. Its totient is φ = 8869416192.

The previous prime is 20319863029. The next prime is 20319863051. The reversal of 20319863044 is 44036891302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20319862988 and 20319863006.

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, 10621032 + ... + 10622944.

It is an arithmetic number, because the mean of its divisors is an integer number (563921820).

Almost surely, 2^20319863044 is an apocalyptic number.

It is an amenable number.

20319863044 is a deficient number, since it is larger than the sum of its proper divisors (20282507996).

20319863044 is a wasteful number, since it uses less digits than its factorization.

20319863044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789 (or 2774 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 20319863044 in words is "twenty billion, three hundred nineteen million, eight hundred sixty-three thousand, forty-four".