65841393247 has 6 divisors (see below), whose sum is σ = 76591008528. Its totient is φ = 56435479884.

The previous prime is 65841393221. The next prime is 65841393287. The reversal of 65841393247 is 74239314856.

It is a happy number.

It is not a de Polignac number, because 65841393247 - 2⁷ = 65841393119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65841393194 and 65841393203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65841393217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 671850903 + ... + 671851000.

It is an arithmetic number, because the mean of its divisors is an integer number (12765168088).

Almost surely, 2^65841393247 is an apocalyptic number.

65841393247 is a deficient number, since it is larger than the sum of its proper divisors (10749615281).

65841393247 is a wasteful number, since it uses less digits than its factorization.

65841393247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343701917 (or 1343701910 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The spelling of 65841393247 in words is "sixty-five billion, eight hundred forty-one million, three hundred ninety-three thousand, two hundred forty-seven".