815474742008 has 16 divisors (see below), whose sum is σ = 1529668881000. Its totient is φ = 407563040416.

The previous prime is 815474741987. The next prime is 815474742139. The reversal of 815474742008 is 800247474518.

It is a congruent number.

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, 21771443 + ... + 21808866.

Almost surely, 2^815474742008 is an apocalyptic number.

It is an amenable number.

815474742008 is a deficient number, since it is larger than the sum of its proper divisors (714194138992).

815474742008 is a wasteful number, since it uses less digits than its factorization.

815474742008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43582654 (or 43582650 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 50.

The spelling of 815474742008 in words is "eight hundred fifteen billion, four hundred seventy-four million, seven hundred forty-two thousand, eight".