3915280650 has 48 divisors (see below), whose sum is σ = 9946738368. Its totient is φ = 1018608000.

The previous prime is 3915280643. The next prime is 3915280679. The reversal of 3915280650 is 560825193.

3915280650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3915280599 and 3915280608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312166 + ... + 324465.

It is an arithmetic number, because the mean of its divisors is an integer number (207223716).

Almost surely, 2^3915280650 is an apocalyptic number.

3915280650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3915280650 is an abundant number, since it is smaller than the sum of its proper divisors (6031457718).

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

3915280650 is a wasteful number, since it uses less digits than its factorization.

3915280650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636687 (or 636682 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 3915280650 is about 62572.2034932445. The cubic root of 3915280650 is about 1576.1140216254.

The spelling of 3915280650 in words is "three billion, nine hundred fifteen million, two hundred eighty thousand, six hundred fifty".