20347469836 has 12 divisors (see below), whose sum is σ = 35609696640. Its totient is φ = 10173270800.

The previous prime is 20347469827. The next prime is 20347469843. The reversal of 20347469836 is 63896474302.

It is a happy 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, 5740 + ... + 201811.

It is an arithmetic number, because the mean of its divisors is an integer number (2967474720).

Almost surely, 2^20347469836 is an apocalyptic number.

It is an amenable number.

20347469836 is a deficient number, since it is larger than the sum of its proper divisors (15262226804).

20347469836 is a wasteful number, since it uses less digits than its factorization.

20347469836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232064 (or 232062 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 20347469836 in words is "twenty billion, three hundred forty-seven million, four hundred sixty-nine thousand, eight hundred thirty-six".