8474531640 has 32 divisors (see below), whose sum is σ = 25423595280. Its totient is φ = 2259875072.

The previous prime is 8474531623. The next prime is 8474531651. The reversal of 8474531640 is 461354748.

It is a super-2 number, since 2×8474531640² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8474531592 and 8474531601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35310429 + ... + 35310668.

Almost surely, 2^8474531640 is an apocalyptic number.

It is an amenable number.

8474531640 is an abundant number, since it is smaller than the sum of its proper divisors (16949063640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8474531640 is a wasteful number, since it uses less digits than its factorization.

8474531640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70621111 (or 70621107 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 8474531640 is about 92057.2193801225. The cubic root of 8474531640 is about 2038.7872164728.

The spelling of 8474531640 in words is "eight billion, four hundred seventy-four million, five hundred thirty-one thousand, six hundred forty".