78558034254 has 32 divisors (see below), whose sum is σ = 182604637440. Its totient is φ = 22064725632.

The previous prime is 78558034249. The next prime is 78558034283. The reversal of 78558034254 is 45243085587.

It is a junction number, because it is equal to n+sod(n) for n = 78558034197 and 78558034206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15848619 + ... + 15853574.

It is an arithmetic number, because the mean of its divisors is an integer number (5706394920).

Almost surely, 2^78558034254 is an apocalyptic number.

78558034254 is an abundant number, since it is smaller than the sum of its proper divisors (104046603186).

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

78558034254 is a wasteful number, since it uses less digits than its factorization.

78558034254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31702264.

The product of its (nonzero) digits is 5376000, while the sum is 51.

The spelling of 78558034254 in words is "seventy-eight billion, five hundred fifty-eight million, thirty-four thousand, two hundred fifty-four".