2119273956 has 144 divisors (see below), whose sum is σ = 5833737728. Its totient is φ = 671846400.

The previous prime is 2119273951. The next prime is 2119273967. The reversal of 2119273956 is 6593729112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2119273951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1837476 + ... + 1838628.

Almost surely, 2^2119273956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2119273956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2916868864).

2119273956 is an abundant number, since it is smaller than the sum of its proper divisors (3714463772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2119273956 is a wasteful number, since it uses less digits than its factorization.

2119273956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1250 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 2119273956 is about 46035.5727237101. The cubic root of 2119273956 is about 1284.4849901649.

The spelling of 2119273956 in words is "two billion, one hundred nineteen million, two hundred seventy-three thousand, nine hundred fifty-six".