78818002733225 has 72 divisors (see below), whose sum is σ = 114007170895488. Its totient is φ = 53896492540800.

The previous prime is 78818002733209. The next prime is 78818002733227. The reversal of 78818002733225 is 52233720081887.

It is not a de Polignac number, because 78818002733225 - 2⁴ = 78818002733209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78818002733227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 710894144 + ... + 711005006.

It is an arithmetic number, because the mean of its divisors is an integer number (1583432929104).

Almost surely, 2^{78818002733225} is an apocalyptic number.

It is an amenable number.

78818002733225 is a deficient number, since it is larger than the sum of its proper divisors (35189168162263).

78818002733225 is a wasteful number, since it uses less digits than its factorization.

78818002733225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112495 (or 112483 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 78818002733225 in words is "seventy-eight trillion, eight hundred eighteen billion, two million, seven hundred thirty-three thousand, two hundred twenty-five".