36640847860 has 12 divisors (see below), whose sum is σ = 76945780548. Its totient is φ = 14656339136.

The previous prime is 36640847849. The next prime is 36640847891. The reversal of 36640847860 is 6874804663.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4669262224 + 31971585636 = 68332^2 + 178806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36640847798 and 36640847807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916021177 + ... + 916021216.

It is an arithmetic number, because the mean of its divisors is an integer number (6412148379).

Almost surely, 2^36640847860 is an apocalyptic number.

It is an amenable number.

36640847860 is an abundant number, since it is smaller than the sum of its proper divisors (40304932688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36640847860 is a wasteful number, since it uses less digits than its factorization.

36640847860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832042402 (or 1832042400 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 36640847860 in words is "thirty-six billion, six hundred forty million, eight hundred forty-seven thousand, eight hundred sixty".