78504110538757 has 8 divisors (see below), whose sum is σ = 83131236360000. Its totient is φ = 73878011047104.

The previous prime is 78504110538701. The next prime is 78504110538769. The reversal of 78504110538757 is 75783501140587.

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

It is a de Polignac number, because none of the positive numbers 2^k-78504110538757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78504110538695 and 78504110538704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78504110538157) 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, 256424907 + ... + 256730872.

It is an arithmetic number, because the mean of its divisors is an integer number (10391404545000).

Almost surely, 2^{78504110538757} is an apocalyptic number.

It is an amenable number.

78504110538757 is a deficient number, since it is larger than the sum of its proper divisors (4627125821243).

78504110538757 is a wasteful number, since it uses less digits than its factorization.

78504110538757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513164795.

The product of its (nonzero) digits is 32928000, while the sum is 61.

The spelling of 78504110538757 in words is "seventy-eight trillion, five hundred four billion, one hundred ten million, five hundred thirty-eight thousand, seven hundred fifty-seven".