2789523972 has 36 divisors (see below), whose sum is σ = 7094571120. Its totient is φ = 924134832.

The previous prime is 2789523959. The next prime is 2789523977. The reversal of 2789523972 is 2793259872.

2789523972 is a `hidden beast` number, since 27 + 8 + 9 + 523 + 97 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2789523977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231822 + ... + 243557.

It is an arithmetic number, because the mean of its divisors is an integer number (197071420).

Almost surely, 2^2789523972 is an apocalyptic number.

It is an amenable number.

2789523972 is an abundant number, since it is smaller than the sum of its proper divisors (4305047148).

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

2789523972 is a wasteful number, since it uses less digits than its factorization.

2789523972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475552 (or 475547 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 2789523972 is about 52815.9442971533. The cubic root of 2789523972 is about 1407.6997472550.

The spelling of 2789523972 in words is "two billion, seven hundred eighty-nine million, five hundred twenty-three thousand, nine hundred seventy-two".