84637828801 has 4 divisors (see below), whose sum is σ = 84639386052. Its totient is φ = 84636271552.

The previous prime is 84637828783. The next prime is 84637828817. The reversal of 84637828801 is 10882873648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58490938801 + 26146890000 = 241849^2 + 161700^2 .

It is a cyclic number.

It is not a de Polignac number, because 84637828801 - 2¹⁹ = 84637304513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84637820801) 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, 694036 + ... + 806821.

It is an arithmetic number, because the mean of its divisors is an integer number (21159846513).

Almost surely, 2^84637828801 is an apocalyptic number.

It is an amenable number.

84637828801 is a deficient number, since it is larger than the sum of its proper divisors (1557251).

84637828801 is a wasteful number, since it uses less digits than its factorization.

84637828801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557250.

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 84637828801 in words is "eighty-four billion, six hundred thirty-seven million, eight hundred twenty-eight thousand, eight hundred one".