83388387642 has 16 divisors (see below), whose sum is σ = 190602028992. Its totient is φ = 23825253600.

The previous prime is 83388387637. The next prime is 83388387673. The reversal of 83388387642 is 24678388338.

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 7 ways as a sum of consecutive naturals, for example, 992718859 + ... + 992718942.

It is an arithmetic number, because the mean of its divisors is an integer number (11912626812).

Almost surely, 2^83388387642 is an apocalyptic number.

83388387642 is an abundant number, since it is smaller than the sum of its proper divisors (107213641350).

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

83388387642 is a wasteful number, since it uses less digits than its factorization.

83388387642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985437813.

The product of its digits is 37158912, while the sum is 60.

The spelling of 83388387642 in words is "eighty-three billion, three hundred eighty-eight million, three hundred eighty-seven thousand, six hundred forty-two".