163731399834 has 64 divisors (see below), whose sum is σ = 335971722240. Its totient is φ = 53180400000.

The previous prime is 163731399827. The next prime is 163731399899. The reversal of 163731399834 is 438993137361.

It is a happy number.

163731399834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14001462 + ... + 14013150.

It is an arithmetic number, because the mean of its divisors is an integer number (5249558160).

Almost surely, 2^163731399834 is an apocalyptic number.

163731399834 is an abundant number, since it is smaller than the sum of its proper divisors (172240322406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163731399834 is a wasteful number, since it uses less digits than its factorization.

163731399834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12147.

The product of its digits is 8817984, while the sum is 57.

The spelling of 163731399834 in words is "one hundred sixty-three billion, seven hundred thirty-one million, three hundred ninety-nine thousand, eight hundred thirty-four".