36406505265 has 32 divisors (see below), whose sum is σ = 64065931776. Its totient is φ = 17541853440.

The previous prime is 36406505251. The next prime is 36406505287. The reversal of 36406505265 is 56250560463.

It is not a de Polignac number, because 36406505265 - 2¹² = 36406501169 is a prime.

It is a super-2 number, since 2×36406505265² (a number of 22 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 31 ways as a sum of consecutive naturals, for example, 1977006 + ... + 1995335.

It is an arithmetic number, because the mean of its divisors is an integer number (2002060368).

Almost surely, 2^36406505265 is an apocalyptic number.

It is an amenable number.

36406505265 is a deficient number, since it is larger than the sum of its proper divisors (27659426511).

36406505265 is a wasteful number, since it uses less digits than its factorization.

36406505265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972409.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 36406505265 in words is "thirty-six billion, four hundred six million, five hundred five thousand, two hundred sixty-five".