84906789738 has 16 divisors (see below), whose sum is σ = 172205320896. Its totient is φ = 27903639680.

The previous prime is 84906789707. The next prime is 84906789743. The reversal of 84906789738 is 83798760948.

It is a super-2 number, since 2×84906789738² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99655431 + ... + 99656282.

It is an arithmetic number, because the mean of its divisors is an integer number (10762832556).

Almost surely, 2^84906789738 is an apocalyptic number.

84906789738 is an abundant number, since it is smaller than the sum of its proper divisors (87298531158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84906789738 is a wasteful number, since it uses less digits than its factorization.

84906789738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199311789.

The product of its (nonzero) digits is 146313216, while the sum is 69.

The spelling of 84906789738 in words is "eighty-four billion, nine hundred six million, seven hundred eighty-nine thousand, seven hundred thirty-eight".