20727723802 has 16 divisors (see below), whose sum is σ = 31163190912. Its totient is φ = 10340021920.

The previous prime is 20727723761. The next prime is 20727723803. The reversal of 20727723802 is 20832772702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20727723803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1672593 + ... + 1684939.

It is an arithmetic number, because the mean of its divisors is an integer number (1947699432).

Almost surely, 2^20727723802 is an apocalyptic number.

20727723802 is a deficient number, since it is larger than the sum of its proper divisors (10435467110).

20727723802 is a wasteful number, since it uses less digits than its factorization.

20727723802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14213.

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 20727723802 in words is "twenty billion, seven hundred twenty-seven million, seven hundred twenty-three thousand, eight hundred two".