60645372809 has 8 divisors (see below), whose sum is σ = 69310589568. Its totient is φ = 51980554080.

The previous prime is 60645372793. The next prime is 60645372811. The reversal of 60645372809 is 90827354606.

It is a happy number.

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

It is not a de Polignac number, because 60645372809 - 2⁴ = 60645372793 is a prime.

It is a super-2 number, since 2×60645372809² (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 (60645372899) 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, 382949 + ... + 517629.

It is an arithmetic number, because the mean of its divisors is an integer number (8663823696).

Almost surely, 2^60645372809 is an apocalyptic number.

It is an amenable number.

60645372809 is a deficient number, since it is larger than the sum of its proper divisors (8665216759).

60645372809 is a wasteful number, since it uses less digits than its factorization.

60645372809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199015.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 60645372809 in words is "sixty billion, six hundred forty-five million, three hundred seventy-two thousand, eight hundred nine".