78032109252142 has 16 divisors (see below), whose sum is σ = 118656695409120. Its totient is φ = 38479923683712.

The previous prime is 78032109252107. The next prime is 78032109252143. The reversal of 78032109252142 is 24125290123087.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 78032109252092 and 78032109252101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78032109252143) 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, 8168167 + ... + 14925922.

It is an arithmetic number, because the mean of its divisors is an integer number (7416043463070).

Almost surely, 2^{78032109252142} is an apocalyptic number.

78032109252142 is a deficient number, since it is larger than the sum of its proper divisors (40624586156978).

78032109252142 is a wasteful number, since it uses less digits than its factorization.

78032109252142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23117307.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 78032109252142 in words is "seventy-eight trillion, thirty-two billion, one hundred nine million, two hundred fifty-two thousand, one hundred forty-two".