65480372591 has 8 divisors (see below), whose sum is σ = 70468753104. Its totient is φ = 60618280320.

The previous prime is 65480372497. The next prime is 65480372603. The reversal of 65480372591 is 19527308456.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65480372591 is a prime.

It is a super-3 number, since 3×65480372591³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65480372791) 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, 31570985 + ... + 31573058.

It is an arithmetic number, because the mean of its divisors is an integer number (8808594138).

It is a 2-persistent number, because it is pandigital, and so is 2⋅65480372591 = 130960745182, but 3⋅65480372591 = 196441117773 is not.

Almost surely, 2^65480372591 is an apocalyptic number.

65480372591 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

65480372591 is a deficient number, since it is larger than the sum of its proper divisors (4988380513).

65480372591 is a wasteful number, since it uses less digits than its factorization.

65480372591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63144121.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 65480372591 in words is "sixty-five billion, four hundred eighty million, three hundred seventy-two thousand, five hundred ninety-one".