65752545947 has 8 divisors (see below), whose sum is σ = 75505316160. Its totient is φ = 56628986760.

The previous prime is 65752545931. The next prime is 65752545949. The reversal of 65752545947 is 74954525756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65752545947 - 2⁴ = 65752545931 is a prime.

It is a super-2 number, since 2×65752545947² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65752545949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157302533 + ... + 157302950.

It is an arithmetic number, because the mean of its divisors is an integer number (9438164520).

Almost surely, 2^65752545947 is an apocalyptic number.

65752545947 is a deficient number, since it is larger than the sum of its proper divisors (9752770213).

65752545947 is a wasteful number, since it uses less digits than its factorization.

65752545947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314605513.

The product of its digits is 52920000, while the sum is 59.

The spelling of 65752545947 in words is "sixty-five billion, seven hundred fifty-two million, five hundred forty-five thousand, nine hundred forty-seven".