8215855967 has 8 divisors (see below), whose sum is σ = 9352437120. Its totient is φ = 7144222360.

The previous prime is 8215855961. The next prime is 8215855969. The reversal of 8215855967 is 7695585128.

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

It is not a de Polignac number, because 8215855967 - 2³⁰ = 7142114143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215855961) 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, 16236617 + ... + 16237122.

It is an arithmetic number, because the mean of its divisors is an integer number (1169054640).

Almost surely, 2^8215855967 is an apocalyptic number.

8215855967 is a deficient number, since it is larger than the sum of its proper divisors (1136581153).

8215855967 is a wasteful number, since it uses less digits than its factorization.

8215855967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32473773.

The product of its digits is 6048000, while the sum is 56.

The square root of 8215855967 is about 90641.3590310737. The cubic root of 8215855967 is about 2017.8285955916.

The spelling of 8215855967 in words is "eight billion, two hundred fifteen million, eight hundred fifty-five thousand, nine hundred sixty-seven".