77335427794 has 8 divisors (see below), whose sum is σ = 116153993340. Its totient is φ = 38617430016.

The previous prime is 77335427777. The next prime is 77335427797. The reversal of 77335427794 is 49772453377.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71147560225 + 6187867569 = 266735^2 + 78663^2 .

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

It is not an unprimeable number, because it can be changed into a prime (77335427797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25140019 + ... + 25143094.

Almost surely, 2^77335427794 is an apocalyptic number.

77335427794 is a deficient number, since it is larger than the sum of its proper divisors (38818565546).

77335427794 is a wasteful number, since it uses less digits than its factorization.

77335427794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50283884.

The product of its digits is 31116960, while the sum is 58.

The spelling of 77335427794 in words is "seventy-seven billion, three hundred thirty-five million, four hundred twenty-seven thousand, seven hundred ninety-four".