8049639700 has 18 divisors (see below), whose sum is σ = 17467718366. Its totient is φ = 3219855840.

The previous prime is 8049639691. The next prime is 8049639721. The reversal of 8049639700 is 79369408.

It can be written as a sum of positive squares in 3 ways, for example, as 70862724 + 7978776976 = 8418^2 + 89324^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40248099 + ... + 40248298.

Almost surely, 2^8049639700 is an apocalyptic number.

It is an amenable number.

8049639700 is an abundant number, since it is smaller than the sum of its proper divisors (9418078666).

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

8049639700 is a wasteful number, since it uses less digits than its factorization.

8049639700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80496411 (or 80496404 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 8049639700 is about 89719.7843287644. The cubic root of 8049639700 is about 2004.1281151370.

The spelling of 8049639700 in words is "eight billion, forty-nine million, six hundred thirty-nine thousand, seven hundred".