7781950452 has 12 divisors (see below), whose sum is σ = 18157884416. Its totient is φ = 2593983480.

The previous prime is 7781950427. The next prime is 7781950471. The reversal of 7781950452 is 2540591877.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324247924 + ... + 324247947.

Almost surely, 2^7781950452 is an apocalyptic number.

It is an amenable number.

7781950452 is an abundant number, since it is smaller than the sum of its proper divisors (10375933964).

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

7781950452 is a wasteful number, since it uses less digits than its factorization.

7781950452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648495878 (or 648495876 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The square root of 7781950452 is about 88215.3640359773. The cubic root of 7781950452 is about 1981.6615692436.

It can be divided in two parts, 77819 and 50452, that added together give a triangular number (128271 = T₅₀₆).

The spelling of 7781950452 in words is "seven billion, seven hundred eighty-one million, nine hundred fifty thousand, four hundred fifty-two".