78381202732140 has 96 divisors (see below), whose sum is σ = 273621653190144. Its totient is φ = 16287003164160.

The previous prime is 78381202732051. The next prime is 78381202732141. The reversal of 78381202732140 is 4123720218387.

It is a super-3 number, since 3×78381202732140³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 78381202732140.

It is not an unprimeable number, because it can be changed into a prime (78381202732141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8482809529 + ... + 8482818768.

It is an arithmetic number, because the mean of its divisors is an integer number (2850225554064).

Almost surely, 2^{78381202732140} is an apocalyptic number.

78381202732140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78381202732140 is an abundant number, since it is smaller than the sum of its proper divisors (195240450458004).

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

78381202732140 is a wasteful number, since it uses less digits than its factorization.

78381202732140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16965628327 (or 16965628325 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 78381202732140 in words is "seventy-eight trillion, three hundred eighty-one billion, two hundred two million, seven hundred thirty-two thousand, one hundred forty".