2031621622 has 16 divisors (see below), whose sum is σ = 3176593200. Its totient is φ = 973292320.

The previous prime is 2031621587. The next prime is 2031621623. The reversal of 2031621622 is 2261261302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031621623) 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, 126097 + ... + 141292.

It is an arithmetic number, because the mean of its divisors is an integer number (198537075).

Almost surely, 2^2031621622 is an apocalyptic number.

2031621622 is a deficient number, since it is larger than the sum of its proper divisors (1144971578).

2031621622 is a wasteful number, since it uses less digits than its factorization.

2031621622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267551.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2031621622 is about 45073.5135306756. The cubic root of 2031621622 is about 1266.5264833629.

Adding to 2031621622 its reverse (2261261302), we get a palindrome (4292882924).

The spelling of 2031621622 in words is "two billion, thirty-one million, six hundred twenty-one thousand, six hundred twenty-two".