78328407246 has 8 divisors (see below), whose sum is σ = 156656814504. Its totient is φ = 26109469080.

The previous prime is 78328407233. The next prime is 78328407259. The reversal of 78328407246 is 64270482387.

It is an interprime number because it is at equal distance from previous prime (78328407233) and next prime (78328407259).

It is a sphenic number, since it is the product of 3 distinct primes.

78328407246 is an admirable number.

It is a super-2 number, since 2×78328407246² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6527367265 + ... + 6527367276.

It is an arithmetic number, because the mean of its divisors is an integer number (19582101813).

Almost surely, 2^78328407246 is an apocalyptic number.

78328407246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78328407246 is a wasteful number, since it uses less digits than its factorization.

78328407246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13054734546.

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 78328407246 in words is "seventy-eight billion, three hundred twenty-eight million, four hundred seven thousand, two hundred forty-six".