2650442731 has 4 divisors (see below), whose sum is σ = 2652301512. Its totient is φ = 2648583952.

The previous prime is 2650442713. The next prime is 2650442737. The reversal of 2650442731 is 1372440562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2650442731 - 2²⁷ = 2516225003 is a prime.

It is a super-2 number, since 2×2650442731² = 14049693340621476722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2650442737) 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, 927250 + ... + 930103.

It is an arithmetic number, because the mean of its divisors is an integer number (663075378).

Almost surely, 2^2650442731 is an apocalyptic number.

2650442731 is a deficient number, since it is larger than the sum of its proper divisors (1858781).

2650442731 is a wasteful number, since it uses less digits than its factorization.

2650442731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858780.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 2650442731 is about 51482.4507089552. The cubic root of 2650442731 is about 1383.9045639236.

The spelling of 2650442731 in words is "two billion, six hundred fifty million, four hundred forty-two thousand, seven hundred thirty-one".