287420189716 has 24 divisors (see below), whose sum is σ = 555322257504. Its totient is φ = 129071496480.

The previous prime is 287420189687. The next prime is 287420189723. The reversal of 287420189716 is 617981024782.

It is a super-2 number, since 2×287420189716² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39347415 + ... + 39354718.

It is an arithmetic number, because the mean of its divisors is an integer number (23138427396).

Almost surely, 2^287420189716 is an apocalyptic number.

It is an amenable number.

287420189716 is a deficient number, since it is larger than the sum of its proper divisors (267902067788).

287420189716 is a wasteful number, since it uses less digits than its factorization.

287420189716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78702231 (or 78702229 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 287420189716 in words is "two hundred eighty-seven billion, four hundred twenty million, one hundred eighty-nine thousand, seven hundred sixteen".