65890007783 has 2 divisors, whose sum is σ = 65890007784. Its totient is φ = 65890007782.

The previous prime is 65890007759. The next prime is 65890007797. The reversal of 65890007783 is 38770009856.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65890007783 - 2³² = 61595040487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65890007083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32945003891 + 32945003892.

It is an arithmetic number, because the mean of its divisors is an integer number (32945003892).

Almost surely, 2^65890007783 is an apocalyptic number.

65890007783 is a deficient number, since it is larger than the sum of its proper divisors (1).

65890007783 is an equidigital number, since it uses as much as digits as its factorization.

65890007783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 65890007783 in words is "sixty-five billion, eight hundred ninety million, seven thousand, seven hundred eighty-three".