84209928693 has 32 divisors (see below), whose sum is σ = 124716948480. Its totient is φ = 50109383040.

The previous prime is 84209928637. The next prime is 84209928701. The reversal of 84209928693 is 39682990248.

It is a happy number.

It is not a de Polignac number, because 84209928693 - 2⁸ = 84209928437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84209928193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1576105 + ... + 1628657.

It is an arithmetic number, because the mean of its divisors is an integer number (3897404640).

Almost surely, 2^84209928693 is an apocalyptic number.

It is an amenable number.

84209928693 is a deficient number, since it is larger than the sum of its proper divisors (40507019787).

84209928693 is a wasteful number, since it uses less digits than its factorization.

84209928693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53449.

The product of its (nonzero) digits is 13436928, while the sum is 60.

The spelling of 84209928693 in words is "eighty-four billion, two hundred nine million, nine hundred twenty-eight thousand, six hundred ninety-three".