84717138425 has 6 divisors (see below), whose sum is σ = 105049251678. Its totient is φ = 67773710720.

The previous prime is 84717138397. The next prime is 84717138463. The reversal of 84717138425 is 52483171748.

It can be written as a sum of positive squares in 3 ways, for example, as 25080064 + 84692058361 = 5008^2 + 291019^2 .

It is not a de Polignac number, because 84717138425 - 2⁶ = 84717138361 is a prime.

It is a super-2 number, since 2×84717138425² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1694342744 + ... + 1694342793.

It is an arithmetic number, because the mean of its divisors is an integer number (17508208613).

Almost surely, 2^84717138425 is an apocalyptic number.

It is an amenable number.

84717138425 is a deficient number, since it is larger than the sum of its proper divisors (20332113253).

84717138425 is a wasteful number, since it uses less digits than its factorization.

84717138425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388685547 (or 3388685542 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 50.

The spelling of 84717138425 in words is "eighty-four billion, seven hundred seventeen million, one hundred thirty-eight thousand, four hundred twenty-five".