84768988538 has 8 divisors (see below), whose sum is σ = 136934519988. Its totient is φ = 39124148544.

The previous prime is 84768988537. The next prime is 84768988541. The reversal of 84768988538 is 83588986748.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84202691329 + 566297209 = 290177^2 + 23797^2 .

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

It is not an unprimeable number, because it can be changed into a prime (84768988537) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1630172831 + ... + 1630172882.

Almost surely, 2^84768988538 is an apocalyptic number.

84768988538 is a deficient number, since it is larger than the sum of its proper divisors (52165531450).

84768988538 is a wasteful number, since it uses less digits than its factorization.

84768988538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260345728.

The product of its digits is 743178240, while the sum is 74.

The spelling of 84768988538 in words is "eighty-four billion, seven hundred sixty-eight million, nine hundred eighty-eight thousand, five hundred thirty-eight".