36856172128 has 24 divisors (see below), whose sum is σ = 72657254880. Its totient is φ = 18403536000.

The previous prime is 36856172113. The next prime is 36856172131. The reversal of 36856172128 is 82127165863.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742783 + ... + 790846.

It is an arithmetic number, because the mean of its divisors is an integer number (3027385620).

Almost surely, 2^36856172128 is an apocalyptic number.

It is an amenable number.

36856172128 is a deficient number, since it is larger than the sum of its proper divisors (35801082752).

36856172128 is a wasteful number, since it uses less digits than its factorization.

36856172128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534390 (or 1534382 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The spelling of 36856172128 in words is "thirty-six billion, eight hundred fifty-six million, one hundred seventy-two thousand, one hundred twenty-eight".