2643650461 has 8 divisors (see below), whose sum is σ = 2658015360. Its totient is φ = 2629313568.

The previous prime is 2643650459. The next prime is 2643650497. The reversal of 2643650461 is 1640563462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2643650461 - 2¹ = 2643650459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2643650461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643650431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198370 + ... + 211276.

It is an arithmetic number, because the mean of its divisors is an integer number (332251920).

Almost surely, 2^2643650461 is an apocalyptic number.

It is an amenable number.

2643650461 is a deficient number, since it is larger than the sum of its proper divisors (14364899).

2643650461 is a wasteful number, since it uses less digits than its factorization.

2643650461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14003.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2643650461 is about 51416.4415435374. The cubic root of 2643650461 is about 1382.7213786342.

The spelling of 2643650461 in words is "two billion, six hundred forty-three million, six hundred fifty thousand, four hundred sixty-one".