84636133425 has 36 divisors (see below), whose sum is σ = 151641138220. Its totient is φ = 45124853760.

The previous prime is 84636133423. The next prime is 84636133427. The reversal of 84636133425 is 52433163648.

84636133425 is a `hidden beast` number, since 8 + 4 + 6 + 3 + 613 + 3 + 4 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (84636133423) and next prime (84636133427).

It can be written as a sum of positive squares in 6 ways, for example, as 2936772864 + 81699360561 = 54192^2 + 285831^2 .

It is not a de Polignac number, because 84636133425 - 2¹ = 84636133423 is a prime.

It is a super-2 number, since 2×84636133425² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (84636133423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 665361 + ... + 782289.

Almost surely, 2^84636133425 is an apocalyptic number.

It is an amenable number.

84636133425 is a deficient number, since it is larger than the sum of its proper divisors (67005004795).

84636133425 is a wasteful number, since it uses less digits than its factorization.

84636133425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120162 (or 120154 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 84636133425 in words is "eighty-four billion, six hundred thirty-six million, one hundred thirty-three thousand, four hundred twenty-five".