645097412038 has 8 divisors (see below), whose sum is σ = 967705281720. Its totient is φ = 322528984800.

The previous prime is 645097412021. The next prime is 645097412051. The reversal of 645097412038 is 830214790546.

It is a happy number.

645097412038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 645097411982 and 645097412000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9819688 + ... + 9885163.

It is an arithmetic number, because the mean of its divisors is an integer number (120963160215).

It is a 1-persistent number, because it is pandigital, but 2⋅645097412038 = 1290194824076 is not.

Almost surely, 2^645097412038 is an apocalyptic number.

645097412038 is a deficient number, since it is larger than the sum of its proper divisors (322607869682).

645097412038 is a wasteful number, since it uses less digits than its factorization.

645097412038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19721222.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 645097412038 in words is "six hundred forty-five billion, ninety-seven million, four hundred twelve thousand, thirty-eight".