78709213380 has 48 divisors (see below), whose sum is σ = 251869484160. Its totient is φ = 17990677248.

The previous prime is 78709213367. The next prime is 78709213397. The reversal of 78709213380 is 8331290787.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93701025 + ... + 93701864.

It is an arithmetic number, because the mean of its divisors is an integer number (5247280920).

Almost surely, 2^78709213380 is an apocalyptic number.

78709213380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78709213380 is an abundant number, since it is smaller than the sum of its proper divisors (173160270780).

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

78709213380 is a wasteful number, since it uses less digits than its factorization.

78709213380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187402908 (or 187402906 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 78709213380 in words is "seventy-eight billion, seven hundred nine million, two hundred thirteen thousand, three hundred eighty".