77334334257 has 16 divisors (see below), whose sum is σ = 107627950080. Its totient is φ = 49299818832.

The previous prime is 77334334247. The next prime is 77334334277. The reversal of 77334334257 is 75243343377.

It is not a de Polignac number, because 77334334257 - 2⁴ = 77334334241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77334334247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64938 + ... + 398604.

It is an arithmetic number, because the mean of its divisors is an integer number (6726746880).

Almost surely, 2^77334334257 is an apocalyptic number.

It is an amenable number.

77334334257 is a deficient number, since it is larger than the sum of its proper divisors (30293615823).

77334334257 is a wasteful number, since it uses less digits than its factorization.

77334334257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337052.

The product of its digits is 4445280, while the sum is 48.

The spelling of 77334334257 in words is "seventy-seven billion, three hundred thirty-four million, three hundred thirty-four thousand, two hundred fifty-seven".