20773652851 has 24 divisors (see below), whose sum is σ = 24624042864. Its totient is φ = 17470494720.

The previous prime is 20773652797. The next prime is 20773652857. The reversal of 20773652851 is 15825637702.

It is not a de Polignac number, because 20773652851 - 2²¹ = 20771555699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20773652857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 675316 + ... + 705406.

It is an arithmetic number, because the mean of its divisors is an integer number (1026001786).

Almost surely, 2^20773652851 is an apocalyptic number.

20773652851 is a deficient number, since it is larger than the sum of its proper divisors (3850390013).

20773652851 is a wasteful number, since it uses less digits than its factorization.

20773652851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30371 (or 30364 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 20773652851 in words is "twenty billion, seven hundred seventy-three million, six hundred fifty-two thousand, eight hundred fifty-one".