77121072442366 has 16 divisors (see below), whose sum is σ = 115712940773808. Its totient is φ = 38550093400000.

The previous prime is 77121072442331. The next prime is 77121072442387. The reversal of 77121072442366 is 66324427012177.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130374066 + ... + 130964266.

It is an arithmetic number, because the mean of its divisors is an integer number (7232058798363).

Almost surely, 2^{77121072442366} is an apocalyptic number.

77121072442366 is a deficient number, since it is larger than the sum of its proper divisors (38591868331442).

77121072442366 is a wasteful number, since it uses less digits than its factorization.

77121072442366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607787.

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 77121072442366 in words is "seventy-seven trillion, one hundred twenty-one billion, seventy-two million, four hundred forty-two thousand, three hundred sixty-six".