20407677683 has 2 divisors, whose sum is σ = 20407677684. Its totient is φ = 20407677682.

The previous prime is 20407677637. The next prime is 20407677691. The reversal of 20407677683 is 38677670402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20407677683 - 2⁸ = 20407677427 is a prime.

It is not a weakly prime, because it can be changed into another prime (20407677883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10203838841 + 10203838842.

It is an arithmetic number, because the mean of its divisors is an integer number (10203838842).

Almost surely, 2^20407677683 is an apocalyptic number.

20407677683 is a deficient number, since it is larger than the sum of its proper divisors (1).

20407677683 is an equidigital number, since it uses as much as digits as its factorization.

20407677683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 20407677683 in words is "twenty billion, four hundred seven million, six hundred seventy-seven thousand, six hundred eighty-three".