65380728103 has 2 divisors, whose sum is σ = 65380728104. Its totient is φ = 65380728102.

The previous prime is 65380728067. The next prime is 65380728109. The reversal of 65380728103 is 30182708356.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65380728103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65380728103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65380728109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32690364051 + 32690364052.

It is an arithmetic number, because the mean of its divisors is an integer number (32690364052).

Almost surely, 2^65380728103 is an apocalyptic number.

65380728103 is a deficient number, since it is larger than the sum of its proper divisors (1).

65380728103 is an equidigital number, since it uses as much as digits as its factorization.

65380728103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 65380728103 in words is "sixty-five billion, three hundred eighty million, seven hundred twenty-eight thousand, one hundred three".