65377321547 has 2 divisors, whose sum is σ = 65377321548. Its totient is φ = 65377321546.

The previous prime is 65377321519. The next prime is 65377321591. The reversal of 65377321547 is 74512377356.

65377321547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65377321547 - 2¹² = 65377317451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65377321495 and 65377321504.

It is not a weakly prime, because it can be changed into another prime (65377321517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32688660773 + 32688660774.

It is an arithmetic number, because the mean of its divisors is an integer number (32688660774).

Almost surely, 2^65377321547 is an apocalyptic number.

65377321547 is a deficient number, since it is larger than the sum of its proper divisors (1).

65377321547 is an equidigital number, since it uses as much as digits as its factorization.

65377321547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3704400, while the sum is 50.

The spelling of 65377321547 in words is "sixty-five billion, three hundred seventy-seven million, three hundred twenty-one thousand, five hundred forty-seven".