78878363300500 has 24 divisors (see below), whose sum is σ = 172270345449384. Its totient is φ = 31551345320000.

The previous prime is 78878363300483. The next prime is 78878363300501. The reversal of 78878363300500 is 500336387887.

It can be written as a sum of positive squares in 4 ways, for example, as 2932053480976 + 75946309819524 = 1712324^2 + 8714718^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78878363300501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78878362801 + ... + 78878363800.

It is an arithmetic number, because the mean of its divisors is an integer number (7177931060391).

Almost surely, 2^{78878363300500} is an apocalyptic number.

It is an amenable number.

78878363300500 is an abundant number, since it is smaller than the sum of its proper divisors (93391982148884).

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

78878363300500 is a wasteful number, since it uses less digits than its factorization.

78878363300500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157756726620 (or 157756726608 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 78878363300500 in words is "seventy-eight trillion, eight hundred seventy-eight billion, three hundred sixty-three million, three hundred thousand, five hundred".