2620668250 has 16 divisors (see below), whose sum is σ = 4905891432. Its totient is φ = 1048267200.

The previous prime is 2620668247. The next prime is 2620668251. The reversal of 2620668250 is 528660262.

It can be written as a sum of positive squares in 4 ways, for example, as 311769649 + 2308898601 = 17657^2 + 48051^2 .

It is not an unprimeable number, because it can be changed into a prime (2620668251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5241087 + ... + 5241586.

Almost surely, 2^2620668250 is an apocalyptic number.

2620668250 is a deficient number, since it is larger than the sum of its proper divisors (2285223182).

2620668250 is a wasteful number, since it uses less digits than its factorization.

2620668250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482690 (or 10482680 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2620668250 is about 51192.4628241307. The cubic root of 2620668250 is about 1378.7028786905.

The spelling of 2620668250 in words is "two billion, six hundred twenty million, six hundred sixty-eight thousand, two hundred fifty".