3610649980 has 144 divisors (see below), whose sum is σ = 9160639488. Its totient is φ = 1170460800.

The previous prime is 3610649947. The next prime is 3610649993. The reversal of 3610649980 is 899460163.

It is a self number, because there is not a number n which added to its sum of digits gives 3610649980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6323095 + ... + 6323665.

It is an arithmetic number, because the mean of its divisors is an integer number (63615552).

Almost surely, 2^3610649980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3610649980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4580319744).

3610649980 is an abundant number, since it is smaller than the sum of its proper divisors (5549989508).

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

3610649980 is a wasteful number, since it uses less digits than its factorization.

3610649980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 3610649980 is about 60088.6842924689. The cubic root of 3610649980 is about 1534.1287065490.

The spelling of 3610649980 in words is "three billion, six hundred ten million, six hundred forty-nine thousand, nine hundred eighty".