36684396208461 has 32 divisors (see below), whose sum is σ = 49884494826880. Its totient is φ = 23973059635200.

The previous prime is 36684396208391. The next prime is 36684396208463. The reversal of 36684396208461 is 16480269348663.

36684396208461 is a nontrivial binomial coefficient, being equal to C(8565559, 2).

It is not a de Polignac number, because 36684396208461 - 2¹⁷ = 36684396077389 is a prime.

It is the 6056765-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 36684396208392 and 36684396208401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36684396208463) by changing a digit.

It is a nontrivial repunit in base 6056764.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261179310 + ... + 261319728.

It is an arithmetic number, because the mean of its divisors is an integer number (1558890463340).

Almost surely, 2^{36684396208461} is an apocalyptic number.

36684396208461 is the 8565558-th triangular number.

It is an amenable number.

36684396208461 is a deficient number, since it is larger than the sum of its proper divisors (13200098618419).

36684396208461 is a wasteful number, since it uses less digits than its factorization.

36684396208461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145357.

The product of its (nonzero) digits is 214990848, while the sum is 66.

The spelling of 36684396208461 in words is "thirty-six trillion, six hundred eighty-four billion, three hundred ninety-six million, two hundred eight thousand, four hundred sixty-one".