8215415340807 has 16 divisors (see below), whose sum is σ = 11398023060480. Its totient is φ = 5259272976672.

The previous prime is 8215415340773. The next prime is 8215415340817. The reversal of 8215415340807 is 7080435145128.

It is not a de Polignac number, because 8215415340807 - 2²⁰ = 8215414292231 is a prime.

It is a super-2 number, since 2×8215415340807² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215415340817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549665707 + ... + 549680652.

It is an arithmetic number, because the mean of its divisors is an integer number (712376441280).

Almost surely, 2^{8215415340807} is an apocalyptic number.

8215415340807 is a deficient number, since it is larger than the sum of its proper divisors (3182607719673).

8215415340807 is a wasteful number, since it uses less digits than its factorization.

8215415340807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099346462.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 8215415340807 in words is "eight trillion, two hundred fifteen billion, four hundred fifteen million, three hundred forty thousand, eight hundred seven".