287442738772 has 48 divisors (see below), whose sum is σ = 601559483392. Its totient is φ = 117582762240.

The previous prime is 287442738767. The next prime is 287442738773. The reversal of 287442738772 is 277837244782.

It is a self number, because there is not a number n which added to its sum of digits gives 287442738772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287442738773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2204823 + ... + 2331550.

Almost surely, 2^287442738772 is an apocalyptic number.

It is an amenable number.

287442738772 is an abundant number, since it is smaller than the sum of its proper divisors (314116744620).

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

287442738772 is a wasteful number, since it uses less digits than its factorization.

287442738772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536488 (or 4536486 counting only the distinct ones).

The product of its digits is 59006976, while the sum is 61.

The spelling of 287442738772 in words is "two hundred eighty-seven billion, four hundred forty-two million, seven hundred thirty-eight thousand, seven hundred seventy-two".