7865000007215 has 8 divisors (see below), whose sum is σ = 10164000009408. Its totient is φ = 5808000005280.

The previous prime is 7865000007191. The next prime is 7865000007217. The reversal of 7865000007215 is 5127000005687.

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

It is not a de Polignac number, because 7865000007215 - 2³² = 7860705039919 is a prime.

It is a super-2 number, since 2×7865000007215² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7865000007217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60499999991 + ... + 60500000120.

It is an arithmetic number, because the mean of its divisors is an integer number (1270500001176).

Almost surely, 2^{7865000007215} is an apocalyptic number.

7865000007215 is a deficient number, since it is larger than the sum of its proper divisors (2299000002193).

7865000007215 is a wasteful number, since it uses less digits than its factorization.

7865000007215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121000000129.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 7865000007215 in words is "seven trillion, eight hundred sixty-five billion, seven thousand, two hundred fifteen".