78533407506677 has 8 divisors (see below), whose sum is σ = 82618429874400. Its totient is φ = 74540183394544.

The previous prime is 78533407506661. The next prime is 78533407506689. The reversal of 78533407506677 is 77660570433587.

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

It is not a de Polignac number, because 78533407506677 - 2⁴ = 78533407506661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78533407206677) 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, 22949562143 + ... + 22949565564.

It is an arithmetic number, because the mean of its divisors is an integer number (10327303734300).

Almost surely, 2^{78533407506677} is an apocalyptic number.

It is an amenable number.

78533407506677 is a deficient number, since it is larger than the sum of its proper divisors (4085022367723).

78533407506677 is a wasteful number, since it uses less digits than its factorization.

78533407506677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45899127795.

The product of its (nonzero) digits is 622339200, while the sum is 68.

The spelling of 78533407506677 in words is "seventy-eight trillion, five hundred thirty-three billion, four hundred seven million, five hundred six thousand, six hundred seventy-seven".