8261467478 has 32 divisors (see below), whose sum is σ = 13579384320. Its totient is φ = 3738420000.

The previous prime is 8261467471. The next prime is 8261467517. The reversal of 8261467478 is 8747641628.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8261467471) 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, 7860053 + ... + 7861103.

It is an arithmetic number, because the mean of its divisors is an integer number (424355760).

Almost surely, 2^8261467478 is an apocalyptic number.

8261467478 is a deficient number, since it is larger than the sum of its proper divisors (5317916842).

8261467478 is a wasteful number, since it uses less digits than its factorization.

8261467478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324.

The product of its digits is 3612672, while the sum is 53.

The square root of 8261467478 is about 90892.6150905562. The cubic root of 8261467478 is about 2021.5557956739. Note that the first 3 decimals are identical.

The spelling of 8261467478 in words is "eight billion, two hundred sixty-one million, four hundred sixty-seven thousand, four hundred seventy-eight".