20785313708 has 6 divisors (see below), whose sum is σ = 36374298996. Its totient is φ = 10392656852.

The previous prime is 20785313683. The next prime is 20785313719. The reversal of 20785313708 is 80731358702.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2598164210 + ... + 2598164217.

It is an arithmetic number, because the mean of its divisors is an integer number (6062383166).

Almost surely, 2^20785313708 is an apocalyptic number.

It is an amenable number.

20785313708 is a deficient number, since it is larger than the sum of its proper divisors (15588985288).

20785313708 is a wasteful number, since it uses less digits than its factorization.

20785313708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196328431 (or 5196328429 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 20785313708 in words is "twenty billion, seven hundred eighty-five million, three hundred thirteen thousand, seven hundred eight".