78470017000 has 32 divisors (see below), whose sum is σ = 183619842120. Its totient is φ = 31388006400.

The previous prime is 78470016983. The next prime is 78470017013. The reversal of 78470017000 is 71007487.

It can be written as a sum of positive squares in 4 ways, for example, as 44021914596 + 34448102404 = 209814^2 + 185602^2 .

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, 39234009 + ... + 39236008.

Almost surely, 2^78470017000 is an apocalyptic number.

It is an amenable number.

78470017000 is an abundant number, since it is smaller than the sum of its proper divisors (105149825120).

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

78470017000 is a wasteful number, since it uses less digits than its factorization.

78470017000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78470038 (or 78470024 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 34.

The spelling of 78470017000 in words is "seventy-eight billion, four hundred seventy million, seventeen thousand".