78502067630142 has 192 divisors, whose sum is σ = 182622248706240. Its totient is φ = 22404352868352.

The previous prime is 78502067630131. The next prime is 78502067630143. The reversal of 78502067630142 is 24103676020587.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78502067630143) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1622019888 + ... + 1622068284.

It is an arithmetic number, because the mean of its divisors is an integer number (951157545345).

Almost surely, 2^{78502067630142} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78502067630142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91311124353120).

78502067630142 is an abundant number, since it is smaller than the sum of its proper divisors (104120181076098).

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

78502067630142 is a wasteful number, since it uses less digits than its factorization.

78502067630142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49807 (or 49794 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 78502067630142 in words is "seventy-eight trillion, five hundred two billion, sixty-seven million, six hundred thirty thousand, one hundred forty-two".