1868036136 has 16 divisors (see below), whose sum is σ = 4670090400. Its totient is φ = 622678704.

The previous prime is 1868036113. The next prime is 1868036147. The reversal of 1868036136 is 6316308681.

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, 38917396 + ... + 38917443.

It is an arithmetic number, because the mean of its divisors is an integer number (291880650).

Almost surely, 2^1868036136 is an apocalyptic number.

It is an amenable number.

1868036136 is an abundant number, since it is smaller than the sum of its proper divisors (2802054264).

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

1868036136 is a wasteful number, since it uses less digits than its factorization.

1868036136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77834848 (or 77834844 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1868036136 is about 43220.7836115913. The cubic root of 1868036136 is about 1231.5775330164.

The spelling of 1868036136 in words is "one billion, eight hundred sixty-eight million, thirty-six thousand, one hundred thirty-six".