77242470364417 has 4 divisors (see below), whose sum is σ = 78220223153920. Its totient is φ = 76264717574916.

The previous prime is 77242470364403. The next prime is 77242470364421. The reversal of 77242470364417 is 71446307424277.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77242470364417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77242470364487) 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, 488876394633 + ... + 488876394790.

It is an arithmetic number, because the mean of its divisors is an integer number (19555055788480).

Almost surely, 2^{77242470364417} is an apocalyptic number.

It is an amenable number.

77242470364417 is a deficient number, since it is larger than the sum of its proper divisors (977752789503).

77242470364417 is an equidigital number, since it uses as much as digits as its factorization.

77242470364417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977752789502.

The product of its (nonzero) digits is 44255232, while the sum is 58.

The spelling of 77242470364417 in words is "seventy-seven trillion, two hundred forty-two billion, four hundred seventy million, three hundred sixty-four thousand, four hundred seventeen".