18077731783 has 2 divisors, whose sum is σ = 18077731784. Its totient is φ = 18077731782.

The previous prime is 18077731759. The next prime is 18077731807. The reversal of 18077731783 is 38713777081.

It is a balanced prime because it is at equal distance from previous prime (18077731759) and next prime (18077731807).

It is a cyclic number.

It is not a de Polignac number, because 18077731783 - 2⁹ = 18077731271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18077731783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18077731723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9038865891 + 9038865892.

It is an arithmetic number, because the mean of its divisors is an integer number (9038865892).

Almost surely, 2^18077731783 is an apocalyptic number.

18077731783 is a deficient number, since it is larger than the sum of its proper divisors (1).

18077731783 is an equidigital number, since it uses as much as digits as its factorization.

18077731783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382976, while the sum is 52.

The spelling of 18077731783 in words is "eighteen billion, seventy-seven million, seven hundred thirty-one thousand, seven hundred eighty-three".