36405409125 has 32 divisors (see below), whose sum is σ = 63212467968. Its totient is φ = 18572030400.

The previous prime is 36405409093. The next prime is 36405409127. The reversal of 36405409125 is 52190450463.

It is not a de Polignac number, because 36405409125 - 2⁵ = 36405409093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36405409127) 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, 2101834 + ... + 2119083.

It is an arithmetic number, because the mean of its divisors is an integer number (1975389624).

Almost surely, 2^36405409125 is an apocalyptic number.

It is an amenable number.

36405409125 is a deficient number, since it is larger than the sum of its proper divisors (26807058843).

36405409125 is a wasteful number, since it uses less digits than its factorization.

36405409125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220958 (or 4220948 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 36405409125 its reverse (52190450463), we get a palindrome (88595859588).

The spelling of 36405409125 in words is "thirty-six billion, four hundred five million, four hundred nine thousand, one hundred twenty-five".