2122789690 has 16 divisors (see below), whose sum is σ = 4366881792. Its totient is φ = 727813584.

The previous prime is 2122789663. The next prime is 2122789709. The reversal of 2122789690 is 969872212.

It is a super-2 number, since 2×2122789690² = 9012472135940592200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2122789690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15162714 + ... + 15162853.

It is an arithmetic number, because the mean of its divisors is an integer number (272930112).

Almost surely, 2^2122789690 is an apocalyptic number.

2122789690 is an abundant number, since it is smaller than the sum of its proper divisors (2244092102).

2122789690 is a wasteful number, since it uses less digits than its factorization.

2122789690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30325581.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 2122789690 is about 46073.7418710484. The cubic root of 2122789690 is about 1285.1948893645.

The spelling of 2122789690 in words is "two billion, one hundred twenty-two million, seven hundred eighty-nine thousand, six hundred ninety".