65752270728 has 16 divisors (see below), whose sum is σ = 164380676880. Its totient is φ = 21917423568.

The previous prime is 65752270723. The next prime is 65752270733. The reversal of 65752270728 is 82707225756.

It is an interprime number because it is at equal distance from previous prime (65752270723) and next prime (65752270733).

It is a super-2 number, since 2×65752270728² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65752270723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369838950 + ... + 1369838997.

It is an arithmetic number, because the mean of its divisors is an integer number (10273792305).

Almost surely, 2^65752270728 is an apocalyptic number.

It is an amenable number.

65752270728 is an abundant number, since it is smaller than the sum of its proper divisors (98628406152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65752270728 is a wasteful number, since it uses less digits than its factorization.

65752270728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739677956 (or 2739677952 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 65752270728 in words is "sixty-five billion, seven hundred fifty-two million, two hundred seventy thousand, seven hundred twenty-eight".