77217061461713 has 4 divisors (see below), whose sum is σ = 77510662456128. Its totient is φ = 76923460467300.

The previous prime is 77217061461703. The next prime is 77217061461731. The reversal of 77217061461713 is 31716416071277.

It is a happy number.

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 not a de Polignac number, because 77217061461713 - 2¹² = 77217061457617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77217061461703) 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, 146800496813 + ... + 146800497338.

It is an arithmetic number, because the mean of its divisors is an integer number (19377665614032).

Almost surely, 2^{77217061461713} is an apocalyptic number.

It is an amenable number.

77217061461713 is a deficient number, since it is larger than the sum of its proper divisors (293600994415).

77217061461713 is a wasteful number, since it uses less digits than its factorization.

77217061461713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293600994414.

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 77217061461713 in words is "seventy-seven trillion, two hundred seventeen billion, sixty-one million, four hundred sixty-one thousand, seven hundred thirteen".