84631947938 has 8 divisors (see below), whose sum is σ = 126960090960. Its totient is φ = 42311917620.

The previous prime is 84631947937. The next prime is 84631947989. The reversal of 84631947938 is 83974913648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×84631947938² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84631947937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002028 + ... + 2043863.

It is an arithmetic number, because the mean of its divisors is an integer number (15870011370).

Almost surely, 2^84631947938 is an apocalyptic number.

84631947938 is a deficient number, since it is larger than the sum of its proper divisors (42328143022).

84631947938 is a wasteful number, since it uses less digits than its factorization.

84631947938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056352.

The product of its digits is 31352832, while the sum is 62.

The spelling of 84631947938 in words is "eighty-four billion, six hundred thirty-one million, nine hundred forty-seven thousand, nine hundred thirty-eight".