78124210333340 has 72 divisors (see below), whose sum is σ = 173174106777840. Its totient is φ = 29600856711936.

The previous prime is 78124210333333. The next prime is 78124210333391. The reversal of 78124210333340 is 4333301242187.

It is a super-2 number, since 2×78124210333340² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51547496 + ... + 53041424.

It is an arithmetic number, because the mean of its divisors is an integer number (2405195927470).

Almost surely, 2^{78124210333340} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78124210333340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86587053388920).

78124210333340 is an abundant number, since it is smaller than the sum of its proper divisors (95049896444500).

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

78124210333340 is a wasteful number, since it uses less digits than its factorization.

78124210333340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501219 (or 1501198 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 78124210333340 in words is "seventy-eight trillion, one hundred twenty-four billion, two hundred ten million, three hundred thirty-three thousand, three hundred forty".