84538980928 has 14 divisors (see below), whose sum is σ = 167757040406. Its totient is φ = 42269490432.

The previous prime is 84538980923. The next prime is 84538980943. The reversal of 84538980928 is 82908983548.

It can be written as a sum of positive squares in only one way, i.e., 45758343744 + 38780637184 = 213912^2 + 196928^2 .

It is a Harshad number since it is a multiple of its sum of digits (64), and also a Moran number because the ratio is a prime number: 1320921577 = 84538980928 / (8 + 4 + 5 + 3 + 8 + 9 + 8 + 0 + 9 + 2 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 84538980928.

It is not an unprimeable number, because it can be changed into a prime (84538980923) 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 as a sum of consecutive naturals, namely, 660460725 + ... + 660460852.

Almost surely, 2^84538980928 is an apocalyptic number.

It is an amenable number.

84538980928 is a deficient number, since it is larger than the sum of its proper divisors (83218059478).

84538980928 is a wasteful number, since it uses less digits than its factorization.

84538980928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320921589 (or 1320921579 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 64.

The spelling of 84538980928 in words is "eighty-four billion, five hundred thirty-eight million, nine hundred eighty thousand, nine hundred twenty-eight".