2650785140 has 12 divisors (see below), whose sum is σ = 5566648836. Its totient is φ = 1060314048.

The previous prime is 2650785079. The next prime is 2650785143. The reversal of 2650785140 is 415870562.

It can be written as a sum of positive squares in 2 ways, for example, as 2022480784 + 628304356 = 44972^2 + 25066^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2650785094 and 2650785103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2650785143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66269609 + ... + 66269648.

It is an arithmetic number, because the mean of its divisors is an integer number (463887403).

Almost surely, 2^2650785140 is an apocalyptic number.

2650785140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2650785140 is an abundant number, since it is smaller than the sum of its proper divisors (2915863696).

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

2650785140 is a wasteful number, since it uses less digits than its factorization.

2650785140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132539266 (or 132539264 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2650785140 is about 51485.7760939854. The cubic root of 2650785140 is about 1383.9641566057.

The spelling of 2650785140 in words is "two billion, six hundred fifty million, seven hundred eighty-five thousand, one hundred forty".