7872287215 has 8 divisors (see below), whose sum is σ = 10173417408. Its totient is φ = 5813381280.

The previous prime is 7872287197. The next prime is 7872287237. The reversal of 7872287215 is 5127822787.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7872287215 - 2²¹ = 7870190063 is a prime.

It is a Duffinian number.

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, 60555991 + ... + 60556120.

It is an arithmetic number, because the mean of its divisors is an integer number (1271677176).

Almost surely, 2^7872287215 is an apocalyptic number.

7872287215 is a deficient number, since it is larger than the sum of its proper divisors (2301130193).

7872287215 is a wasteful number, since it uses less digits than its factorization.

7872287215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121112129.

The product of its digits is 878080, while the sum is 49.

The square root of 7872287215 is about 88725.9106180376. The cubic root of 7872287215 is about 1989.3001263519.

The spelling of 7872287215 in words is "seven billion, eight hundred seventy-two million, two hundred eighty-seven thousand, two hundred fifteen".