238797064539 has 24 divisors (see below), whose sum is σ = 379396106544. Its totient is φ = 144725486400.

The previous prime is 238797064531. The next prime is 238797064543. The reversal of 238797064539 is 935460797832.

238797064539 is a `hidden beast` number, since 2 + 3 + 8 + 7 + 97 + 0 + 6 + 4 + 539 = 666.

It is not a de Polignac number, because 238797064539 - 2³ = 238797064531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238797064531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9955342 + ... + 9979299.

It is an arithmetic number, because the mean of its divisors is an integer number (15808171106).

Almost surely, 2^238797064539 is an apocalyptic number.

238797064539 is a deficient number, since it is larger than the sum of its proper divisors (140599042005).

238797064539 is a wasteful number, since it uses less digits than its factorization.

238797064539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19934680 (or 19934655 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 63.

The spelling of 238797064539 in words is "two hundred thirty-eight billion, seven hundred ninety-seven million, sixty-four thousand, five hundred thirty-nine".