78628253000 has 64 divisors (see below), whose sum is σ = 200716513920. Its totient is φ = 28592088000.

The previous prime is 78628252949. The next prime is 78628253009. The reversal of 78628253000 is 35282687.

It is not an unprimeable number, because it can be changed into a prime (78628253009) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3563012 + ... + 3585011.

It is an arithmetic number, because the mean of its divisors is an integer number (3136195530).

Almost surely, 2^78628253000 is an apocalyptic number.

It is an amenable number.

78628253000 is an abundant number, since it is smaller than the sum of its proper divisors (122088260920).

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

78628253000 is a wasteful number, since it uses less digits than its factorization.

78628253000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148055 (or 7148041 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 78628253000 in words is "seventy-eight billion, six hundred twenty-eight million, two hundred fifty-three thousand".