78755484220504 has 256 divisors, whose sum is σ = 196137887662080. Its totient is φ = 28784827906560.

The previous prime is 78755484220417. The next prime is 78755484220519. The reversal of 78755484220504 is 40502248455787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 271325419 + ... + 271615525.

It is an arithmetic number, because the mean of its divisors is an integer number (766163623680).

Almost surely, 2^{78755484220504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78755484220504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98068943831040).

78755484220504 is an abundant number, since it is smaller than the sum of its proper divisors (117382403441576).

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

78755484220504 is a wasteful number, since it uses less digits than its factorization.

78755484220504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290710 (or 290706 counting only the distinct ones).

The product of its (nonzero) digits is 100352000, while the sum is 61.

The spelling of 78755484220504 in words is "seventy-eight trillion, seven hundred fifty-five billion, four hundred eighty-four million, two hundred twenty thousand, five hundred four".