78231504342180 has 192 divisors, whose sum is σ = 251136136839168. Its totient is φ = 17824730711040.

The previous prime is 78231504342179. The next prime is 78231504342181. The reversal of 78231504342180 is 8124340513287.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78231504342179) and next prime (78231504342181).

It is a super-2 number, since 2×78231504342180² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78231504342181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 286677000 + ... + 286949760.

It is an arithmetic number, because the mean of its divisors is an integer number (1308000712704).

Almost surely, 2^{78231504342180} is an apocalyptic number.

78231504342180 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78231504342180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125568068419584).

78231504342180 is an abundant number, since it is smaller than the sum of its proper divisors (172904632496988).

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

78231504342180 is a wasteful number, since it uses less digits than its factorization.

78231504342180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274946 (or 274944 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 78231504342180 in words is "seventy-eight trillion, two hundred thirty-one billion, five hundred four million, three hundred forty-two thousand, one hundred eighty".