36121624673 has 4 divisors (see below), whose sum is σ = 36125118660. Its totient is φ = 36118130688.

The previous prime is 36121624663. The next prime is 36121624687. The reversal of 36121624673 is 37642612163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37642612163 = 13 ⋅2895585551.

It can be written as a sum of positive squares in 2 ways, for example, as 13953988129 + 22167636544 = 118127^2 + 148888^2 .

It is a cyclic number.

It is not a de Polignac number, because 36121624673 - 2¹⁰ = 36121623649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36121624673.

It is not an unprimeable number, because it can be changed into a prime (36121624663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1731440 + ... + 1752177.

It is an arithmetic number, because the mean of its divisors is an integer number (9031279665).

Almost surely, 2^36121624673 is an apocalyptic number.

It is an amenable number.

36121624673 is a deficient number, since it is larger than the sum of its proper divisors (3493987).

36121624673 is a wasteful number, since it uses less digits than its factorization.

36121624673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493986.

The product of its digits is 217728, while the sum is 41.

The spelling of 36121624673 in words is "thirty-six billion, one hundred twenty-one million, six hundred twenty-four thousand, six hundred seventy-three".