78174884224340 has 48 divisors (see below), whose sum is σ = 165715876130112. Its totient is φ = 30975029197056.

The previous prime is 78174884224337. The next prime is 78174884224373. The reversal of 78174884224340 is 4342248847187.

It is a super-2 number, since 2×78174884224340² (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 15 ways as a sum of consecutive naturals, for example, 23233487 + ... + 26384553.

It is an arithmetic number, because the mean of its divisors is an integer number (3452414086044).

Almost surely, 2^{78174884224340} is an apocalyptic number.

It is an amenable number.

78174884224340 is an abundant number, since it is smaller than the sum of its proper divisors (87540991905772).

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

78174884224340 is a wasteful number, since it uses less digits than its factorization.

78174884224340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162776 (or 3162774 counting only the distinct ones).

The product of its (nonzero) digits is 77070336, while the sum is 62.

The spelling of 78174884224340 in words is "seventy-eight trillion, one hundred seventy-four billion, eight hundred eighty-four million, two hundred twenty-four thousand, three hundred forty".