20000577743 has 2 divisors, whose sum is σ = 20000577744. Its totient is φ = 20000577742.

The previous prime is 20000577739. The next prime is 20000577757. The reversal of 20000577743 is 34777500002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000577743 - 2² = 20000577739 is a prime.

It is a super-2 number, since 2×20000577743² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000777743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000288871 + 10000288872.

It is an arithmetic number, because the mean of its divisors is an integer number (10000288872).

Almost surely, 2^20000577743 is an apocalyptic number.

20000577743 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000577743 is an equidigital number, since it uses as much as digits as its factorization.

20000577743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41160, while the sum is 35.

The spelling of 20000577743 in words is "twenty billion, five hundred seventy-seven thousand, seven hundred forty-three".