78858553000 has 32 divisors (see below), whose sum is σ = 184529016360. Its totient is φ = 31543420800.

The previous prime is 78858552961. The next prime is 78858553001. The reversal of 78858553000 is 35585887.

It can be written as a sum of positive squares in 4 ways, for example, as 10249132644 + 68609420356 = 101238^2 + 261934^2 .

It is not an unprimeable number, because it can be changed into a prime (78858553001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39428277 + ... + 39430276.

Almost surely, 2^78858553000 is an apocalyptic number.

It is an amenable number.

78858553000 is an abundant number, since it is smaller than the sum of its proper divisors (105670463360).

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

78858553000 is a wasteful number, since it uses less digits than its factorization.

78858553000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78858574 (or 78858560 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 49.

The spelling of 78858553000 in words is "seventy-eight billion, eight hundred fifty-eight million, five hundred fifty-three thousand".