153638335868 has 6 divisors (see below), whose sum is σ = 268867087776. Its totient is φ = 76819167932.

The previous prime is 153638335867. The next prime is 153638335871. The reversal of 153638335868 is 868533836351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153638335867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19204791980 + ... + 19204791987.

It is an arithmetic number, because the mean of its divisors is an integer number (44811181296).

Almost surely, 2^153638335868 is an apocalyptic number.

It is an amenable number.

153638335868 is a deficient number, since it is larger than the sum of its proper divisors (115228751908).

153638335868 is a wasteful number, since it uses less digits than its factorization.

153638335868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38409583971 (or 38409583969 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 59.

The spelling of 153638335868 in words is "one hundred fifty-three billion, six hundred thirty-eight million, three hundred thirty-five thousand, eight hundred sixty-eight".