78463474353220 has 48 divisors (see below), whose sum is σ = 179754276594816. Its totient is φ = 28531920128000.

The previous prime is 78463474353181. The next prime is 78463474353221. The reversal of 78463474353220 is 2235347436487.

It is not an unprimeable number, because it can be changed into a prime (78463474353221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24316260 + ... + 27353380.

It is an arithmetic number, because the mean of its divisors is an integer number (3744880762392).

Almost surely, 2^{78463474353220} is an apocalyptic number.

It is an amenable number.

78463474353220 is an abundant number, since it is smaller than the sum of its proper divisors (101290802241596).

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

78463474353220 is a wasteful number, since it uses less digits than its factorization.

78463474353220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154572 (or 3154570 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 58.

The spelling of 78463474353220 in words is "seventy-eight trillion, four hundred sixty-three billion, four hundred seventy-four million, three hundred fifty-three thousand, two hundred twenty".