77069484479 has 8 divisors (see below), whose sum is σ = 87880136400. Its totient is φ = 66956294016.

The previous prime is 77069484463. The next prime is 77069484509. The reversal of 77069484479 is 97448496077.

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

It is a cyclic number.

It is not a de Polignac number, because 77069484479 - 2⁴ = 77069484463 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 (77069484439) 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, 174365129 + ... + 174365570.

It is an arithmetic number, because the mean of its divisors is an integer number (10985017050).

Almost surely, 2^77069484479 is an apocalyptic number.

77069484479 is a deficient number, since it is larger than the sum of its proper divisors (10810651921).

77069484479 is a wasteful number, since it uses less digits than its factorization.

77069484479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348730729.

The product of its (nonzero) digits is 85349376, while the sum is 65.

The spelling of 77069484479 in words is "seventy-seven billion, sixty-nine million, four hundred eighty-four thousand, four hundred seventy-nine".