1621114912 has 24 divisors (see below), whose sum is σ = 3195348156. Its totient is φ = 809597952.

The previous prime is 1621114907. The next prime is 1621114919. The reversal of 1621114912 is 2194111261.

It can be written as a sum of positive squares in 2 ways, for example, as 1080831376 + 540283536 = 32876^2 + 23244^2 .

It is not an unprimeable number, because it can be changed into a prime (1621114919) 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, 2133 + ... + 56980.

Almost surely, 2^1621114912 is an apocalyptic number.

It is an amenable number.

1621114912 is a deficient number, since it is larger than the sum of its proper divisors (1574233244).

1621114912 is an equidigital number, since it uses as much as digits as its factorization.

1621114912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59980 (or 59972 counting only the distinct ones).

The product of its digits is 864, while the sum is 28.

The square root of 1621114912 is about 40263.0713185172. The cubic root of 1621114912 is about 1174.7296585235.

The spelling of 1621114912 in words is "one billion, six hundred twenty-one million, one hundred fourteen thousand, nine hundred twelve".