77120245227 has 8 divisors (see below), whose sum is σ = 104275261440. Its totient is φ = 50689362920.

The previous prime is 77120245219. The next prime is 77120245249. The reversal of 77120245227 is 72254202177.

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 77120245227 - 2³ = 77120245219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77120245217) 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, 181033227 + ... + 181033652.

It is an arithmetic number, because the mean of its divisors is an integer number (13034407680).

Almost surely, 2^77120245227 is an apocalyptic number.

77120245227 is a deficient number, since it is larger than the sum of its proper divisors (27155016213).

77120245227 is a wasteful number, since it uses less digits than its factorization.

77120245227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362066953.

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 77120245227 in words is "seventy-seven billion, one hundred twenty million, two hundred forty-five thousand, two hundred twenty-seven".