36810477668 has 12 divisors (see below), whose sum is σ = 64541983212. Its totient is φ = 18369911040.

The previous prime is 36810477667. The next prime is 36810477677. The reversal of 36810477668 is 86677401863.

It can be written as a sum of positive squares in 2 ways, for example, as 17790757924 + 19019719744 = 133382^2 + 137912^2 .

It is a super-2 number, since 2×36810477668² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36810477661) 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, 8829605 + ... + 8833772.

It is an arithmetic number, because the mean of its divisors is an integer number (5378498601).

Almost surely, 2^36810477668 is an apocalyptic number.

It is an amenable number.

36810477668 is a deficient number, since it is larger than the sum of its proper divisors (27731505544).

36810477668 is a wasteful number, since it uses less digits than its factorization.

36810477668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17663902 (or 17663900 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 36810477668 in words is "thirty-six billion, eight hundred ten million, four hundred seventy-seven thousand, six hundred sixty-eight".