64741563238 has 32 divisors (see below), whose sum is σ = 109305624960. Its totient is φ = 28503624000.

The previous prime is 64741563221. The next prime is 64741563251. The reversal of 64741563238 is 83236514746.

It is a junction number, because it is equal to n+sod(n) for n = 64741563191 and 64741563200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132808 + ... + 383563.

It is an arithmetic number, because the mean of its divisors is an integer number (3415800780).

Almost surely, 2^64741563238 is an apocalyptic number.

64741563238 is a deficient number, since it is larger than the sum of its proper divisors (44564061722).

64741563238 is a wasteful number, since it uses less digits than its factorization.

64741563238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516564.

The product of its digits is 2903040, while the sum is 49.

The spelling of 64741563238 in words is "sixty-four billion, seven hundred forty-one million, five hundred sixty-three thousand, two hundred thirty-eight".