8456387474 has 8 divisors (see below), whose sum is σ = 12685044540. Its totient is φ = 4228039296.

The previous prime is 8456387453. The next prime is 8456387507. The reversal of 8456387474 is 4747836548.

It can be written as a sum of positive squares in 2 ways, for example, as 6969745225 + 1486642249 = 83485^2 + 38557^2 .

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

It is a super-2 number, since 2×8456387474² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11702 + ... + 130574.

Almost surely, 2^8456387474 is an apocalyptic number.

8456387474 is a deficient number, since it is larger than the sum of its proper divisors (4228657066).

8456387474 is a wasteful number, since it uses less digits than its factorization.

8456387474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154444.

The product of its digits is 18063360, while the sum is 56.

The square root of 8456387474 is about 91958.6182693063. The cubic root of 8456387474 is about 2037.3311468035.

The spelling of 8456387474 in words is "eight billion, four hundred fifty-six million, three hundred eighty-seven thousand, four hundred seventy-four".