78536076663477 has 8 divisors (see below), whose sum is σ = 104717634709600. Its totient is φ = 52355951529840.

The previous prime is 78536076663439. The next prime is 78536076663493. The reversal of 78536076663477 is 77436667063587.

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

It is not a de Polignac number, because 78536076663477 - 2¹⁰ = 78536076662453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78536076663399 and 78536076663408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78536076663377) 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, 358100227 + ... + 358319472.

It is an arithmetic number, because the mean of its divisors is an integer number (13089704338700).

Almost surely, 2^{78536076663477} is an apocalyptic number.

It is an amenable number.

78536076663477 is a deficient number, since it is larger than the sum of its proper divisors (26181558046123).

78536076663477 is a wasteful number, since it uses less digits than its factorization.

78536076663477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716456243.

The product of its (nonzero) digits is 4480842240, while the sum is 75.

The spelling of 78536076663477 in words is "seventy-eight trillion, five hundred thirty-six billion, seventy-six million, six hundred sixty-three thousand, four hundred seventy-seven".